Solve Fraction Division: 8/9 ÷ 2/3 Step-by-Step

Fraction Division with Mixed Number Results

Complete the following exercise:

89:23=? \frac{8}{9}:\frac{2}{3}=\text{?}

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:07 Let's solve this problem step by step.
00:10 First, divide the top number by the top number and the bottom by the bottom.
00:15 Now, let's calculate those quotients.
00:21 Next, break down the number 4 into 3 plus 1.
00:31 Then, separate the fraction into a whole number and a remainder.
00:36 Remember, any number divided by itself is always 1.
00:40 Convert your answer into a mixed fraction.
00:44 And there you have it! That's how we solve this problem.

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

Complete the following exercise:

89:23=? \frac{8}{9}:\frac{2}{3}=\text{?}

2

Step-by-step solution

To solve the fraction division 89÷23 \frac{8}{9} \div \frac{2}{3} , follow these steps:

  • Step 1: Identify the given fractions 89 \frac{8}{9} and 23 \frac{2}{3} .
  • Step 2: Find the reciprocal of the second fraction. The reciprocal of 23 \frac{2}{3} is 32 \frac{3}{2} .
  • Step 3: Multiply the first fraction by the reciprocal of the second fraction: 89×32 \frac{8}{9} \times \frac{3}{2} .
  • Step 4: Perform the multiplication: multiply the numerators together and the denominators together.

Let's compute the multiplication:

89×32=8×39×2=2418 \frac{8}{9} \times \frac{3}{2} = \frac{8 \times 3}{9 \times 2} = \frac{24}{18}

Step 5: Simplify the resulting fraction 2418 \frac{24}{18} .

To simplify, find the greatest common divisor (GCD) of 24 and 18, which is 6. Divide both the numerator and the denominator by 6:

2418=24÷618÷6=43 \frac{24}{18} = \frac{24 \div 6}{18 \div 6} = \frac{4}{3}

Step 6: If necessary, convert the improper fraction to a mixed number.

Since 43 \frac{4}{3} is an improper fraction, it can be converted to a mixed number:

43=113 \frac{4}{3} = 1 \frac{1}{3}

Therefore, the solution to the problem 89:23 \frac{8}{9} : \frac{2}{3} is 113 1 \frac{1}{3} .

3

Final Answer

113 1\frac{1}{3}

Key Points to Remember

Essential concepts to master this topic
  • Division Rule: Multiply by the reciprocal of the second fraction
  • Technique: 89×32=2418=43 \frac{8}{9} \times \frac{3}{2} = \frac{24}{18} = \frac{4}{3}
  • Check: Convert 43 \frac{4}{3} to mixed number: 113 1\frac{1}{3}

Common Mistakes

Avoid these frequent errors
  • Dividing numerators and denominators directly
    Don't divide 89÷23 \frac{8}{9} ÷ \frac{2}{3} as 8÷29÷3=43 \frac{8÷2}{9÷3} = \frac{4}{3} = wrong method! This only works by coincidence and fails with most fractions. Always flip the second fraction and multiply.

Practice Quiz

Test your knowledge with interactive questions

Complete the following exercise:

\( \frac{1}{2}:\frac{1}{2}=\text{?} \)

FAQ

Everything you need to know about this question

Why do I flip the second fraction instead of the first?

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In division, we always flip the divisor (the number we're dividing by). Think of it as "89 \frac{8}{9} divided by 23 \frac{2}{3} " - the 23 \frac{2}{3} gets flipped!

How do I know when to convert to a mixed number?

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Convert to a mixed number when the numerator is larger than the denominator (improper fraction). Since 4 > 3 in 43 \frac{4}{3} , we write it as 113 1\frac{1}{3} .

What's the reciprocal of a fraction?

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The reciprocal means flip the fraction - swap the top and bottom numbers. So the reciprocal of 23 \frac{2}{3} is 32 \frac{3}{2} .

Do I always need to simplify my answer?

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Yes! Always simplify fractions to their lowest terms. Find the GCD of numerator and denominator, then divide both by it. 2418÷6=43 \frac{24}{18} ÷ 6 = \frac{4}{3}

Can I check my answer by multiplying back?

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Absolutely! Multiply your answer by the divisor: 113×23 1\frac{1}{3} \times \frac{2}{3} should equal 89 \frac{8}{9} . This confirms your division was correct!

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