Multiply 4 By 2 2/3: A Step-by-Step Guide

by Mei Lin 42 views

Hey guys! 👋 Ever stumbled upon a math problem that looks like a mix of whole numbers and fractions and felt a tiny bit intimidated? No worries, we've all been there! Today, we're going to break down a classic example: multiplying a whole number by a mixed number. Specifically, we'll tackle the problem of 4 multiplied by 2 2/3. Trust me, once you understand the process, you'll be acing these problems in no time. Let's dive in!

Understanding the Basics: Whole Numbers and Mixed Numbers

Before we jump into the multiplication itself, let's make sure we're all on the same page with the terminology. A whole number, as the name suggests, is a number without any fractions or decimals – think 1, 2, 3, 10, 100, and so on. These are the building blocks of our number system. Now, a mixed number is a combination of a whole number and a fraction. Our example, 2 2/3, is a perfect example of a mixed number. It has the whole number '2' and the fraction '2/3' hanging out together. Understanding this distinction is crucial because it dictates how we approach the multiplication process. When multiplying a whole number by a mixed number, we can't just multiply directly. We need to transform that mixed number into a format that plays well with multiplication – and that's where improper fractions come in! So, before we even think about multiplying, our first mission is to convert that mixed number into its improper fraction equivalent. This is a fundamental step that sets the stage for a smooth calculation. Without this conversion, we'd be trying to multiply apples and oranges, so to speak. We need to get everything into the same format, and improper fractions are the key to unlocking this. Once we've mastered this conversion, the rest of the multiplication process will feel like a breeze. Think of it as laying the foundation for a sturdy building – a solid understanding of the basics ensures a strong and reliable result. So, let's get ready to transform that mixed number and pave the way for multiplication success!

Step 1: Converting the Mixed Number to an Improper Fraction

Okay, let's get to the nitty-gritty of converting our mixed number, 2 2/3, into an improper fraction. An improper fraction is simply a fraction where the numerator (the top number) is greater than or equal to the denominator (the bottom number). To convert a mixed number to an improper fraction, we follow a simple two-step process:

  1. Multiply the whole number part of the mixed number by the denominator of the fractional part.
  2. Add the result to the numerator of the fractional part. This becomes the new numerator of our improper fraction. The denominator stays the same.

Let's apply this to our example. For 2 2/3, we first multiply the whole number (2) by the denominator (3): 2 * 3 = 6. Then, we add this result (6) to the numerator (2): 6 + 2 = 8. So, 8 becomes the new numerator of our improper fraction. The denominator remains 3. Therefore, 2 2/3 is equivalent to the improper fraction 8/3. See? Not so scary, right? This conversion is a crucial step because it allows us to treat the mixed number as a single, cohesive fraction, making the multiplication process much smoother. Think of it like translating a sentence from one language to another – once you have the equivalent expression, you can work with it much more effectively. Without this step, we'd be trying to multiply a whole number by a combination of a whole number and a fraction, which can get messy. But by converting to an improper fraction, we're essentially speaking the same mathematical language, setting ourselves up for a successful calculation. Now that we've transformed our mixed number into a proper, usable fraction, we're ready to move on to the actual multiplication. Let's keep the momentum going!

Step 2: Multiplying the Whole Number by the Improper Fraction

Now that we've successfully transformed our mixed number 2 2/3 into the improper fraction 8/3, we're ready for the main event: multiplying 4 by 8/3. When multiplying a whole number by a fraction, it's helpful to think of the whole number as a fraction itself. Any whole number can be written as a fraction by simply putting it over 1. So, we can rewrite 4 as 4/1. This makes the multiplication process visually clearer and easier to execute. Now we have the problem: 4/1 multiplied by 8/3. To multiply fractions, we follow a straightforward rule: multiply the numerators together and multiply the denominators together. So, we multiply 4 (the numerator of the first fraction) by 8 (the numerator of the second fraction): 4 * 8 = 32. This gives us the new numerator of our result. Next, we multiply 1 (the denominator of the first fraction) by 3 (the denominator of the second fraction): 1 * 3 = 3. This gives us the new denominator of our result. Therefore, 4/1 multiplied by 8/3 equals 32/3. We've done the multiplication! But hold on, we're not quite finished yet. Our answer, 32/3, is an improper fraction, meaning the numerator is larger than the denominator. While this is a perfectly valid answer, it's often more helpful and intuitive to express it as a mixed number. This allows us to get a better sense of the magnitude of the number. So, the next step is to convert our improper fraction back into a mixed number. This is like translating our answer back into a language we understand more easily. Let's see how it's done!

Step 3: Converting the Improper Fraction Back to a Mixed Number

Alright, we've arrived at the final step: converting our improper fraction, 32/3, back into a mixed number. This process is essentially the reverse of what we did in Step 1. To convert an improper fraction to a mixed number, we perform division. We divide the numerator (32) by the denominator (3). The quotient (the whole number result of the division) becomes the whole number part of our mixed number. The remainder (the amount left over after the division) becomes the numerator of the fractional part, and the denominator stays the same. Let's break it down: When we divide 32 by 3, we get 10 with a remainder of 2. This means that 3 goes into 32 ten times (10 * 3 = 30), with 2 left over. So, the quotient, 10, becomes the whole number part of our mixed number. The remainder, 2, becomes the numerator of the fractional part. The denominator, 3, remains the same. Therefore, 32/3 is equivalent to the mixed number 10 2/3. And there you have it! We've successfully converted our improper fraction back into a mixed number, giving us a clear and intuitive understanding of the result. This final conversion is like putting the finishing touches on a masterpiece – it transforms a technically correct answer into a polished and easily understandable result. So, the answer to our original problem, 4 multiplied by 2 2/3, is 10 2/3. We've tackled the problem step-by-step, converting, multiplying, and converting again to arrive at our final answer. Give yourself a pat on the back – you've conquered the world of multiplying whole numbers and mixed numbers!

Final Answer: Putting It All Together

So, to recap, we've successfully navigated the process of multiplying 4 by 2 2/3. We started by understanding the difference between whole numbers and mixed numbers. Then, we tackled the key step of converting the mixed number 2 2/3 into the improper fraction 8/3. This transformation allowed us to easily multiply it by the whole number 4 (which we cleverly expressed as the fraction 4/1). We multiplied the numerators (4 * 8 = 32) and the denominators (1 * 3 = 3) to get the improper fraction 32/3. Finally, we converted this improper fraction back into a mixed number, dividing 32 by 3 to get a quotient of 10 and a remainder of 2, resulting in the mixed number 10 2/3. Therefore, the final answer to our problem, 4 multiplied by 2 2/3, is 10 2/3. Awesome job, guys! You've not only learned how to solve this specific problem but also gained a valuable understanding of the general process of multiplying whole numbers and mixed numbers. This is a skill that will come in handy in various mathematical contexts, from everyday calculations to more complex problem-solving scenarios. Remember, the key is to break down the problem into manageable steps, understand the underlying concepts, and practice, practice, practice! The more you work with these types of problems, the more confident and proficient you'll become. So, keep exploring, keep learning, and keep mastering those mathematical challenges. You've got this!