Solve Mixed Number Division: 1 5/13 ÷ 5/13

Mixed Number Division with Same Denominators

Solve the following:

1513:513= 1\frac{5}{13}:\frac{5}{13}=

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Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

Solve the following:

1513:513= 1\frac{5}{13}:\frac{5}{13}=

2

Step-by-step solution

To solve this problem, we'll follow these steps:

  • Step 1: Convert the mixed number to an improper fraction.
  • Step 2: Multiply by the reciprocal of the fraction.
  • Step 3: Simplify and express the result as a decimal if necessary.

Now, let's work through each step:
Step 1: Convert 15131 \frac{5}{13} to an improper fraction. To do this, multiply the whole number 1 by the denominator 13 and add the numerator 5:
1513=113+513=13+513=1813 1 \frac{5}{13} = \frac{1 \cdot 13 + 5}{13} = \frac{13 + 5}{13} = \frac{18}{13}
Step 2: To divide by 513\frac{5}{13}, multiply by the reciprocal of the fraction 513\frac{5}{13}, which is 135\frac{13}{5}:
1813×135=1813135=185\frac{18}{13} \times \frac{13}{5} = \frac{18 \cdot 13}{13 \cdot 5} = \frac{18}{5}
Step 3: Simplify the fraction 185\frac{18}{5} by dividing 18 by 5:
185=3.6 \frac{18}{5} = 3.6

Therefore, the solution to the problem is 3.6 3.6 .

3

Final Answer

3.6 3.6

Key Points to Remember

Essential concepts to master this topic
  • Rule: Convert mixed numbers to improper fractions before dividing
  • Technique: Multiply by reciprocal: 1813×135=185 \frac{18}{13} \times \frac{13}{5} = \frac{18}{5}
  • Check: Verify answer: 3.6×513=1813=1513 3.6 \times \frac{5}{13} = \frac{18}{13} = 1\frac{5}{13}

Common Mistakes

Avoid these frequent errors
  • Dividing mixed number and fraction without converting
    Don't divide 1 5/13 ÷ 5/13 by treating them as separate parts = confusing steps and wrong answer! This makes the problem unnecessarily complicated and often leads to errors. Always convert the mixed number to an improper fraction first.

Practice Quiz

Test your knowledge with interactive questions

\( 3\times\frac{8}{12}= \)

FAQ

Everything you need to know about this question

Why do I need to convert the mixed number to an improper fraction?

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Mixed numbers are hard to divide directly! Converting 1513 1\frac{5}{13} to 1813 \frac{18}{13} makes the division much clearer and follows standard fraction division rules.

How do I remember to multiply by the reciprocal?

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Think: "Dividing by a fraction is the same as multiplying by its flip!" So ÷513 \div \frac{5}{13} becomes ×135 \times \frac{13}{5} .

Why does the answer come out as a decimal instead of a fraction?

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Both are correct! 185=3.6 \frac{18}{5} = 3.6 because 18 ÷ 5 = 3.6. You can express your answer as either an improper fraction or a decimal.

What if the denominators weren't the same?

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The process stays the same! Convert to improper fractions, then multiply by the reciprocal. Having the same denominator just makes the numbers look familiar, but doesn't change the method.

How can I check if 3.6 is really correct?

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Multiply your answer by the divisor: 3.6×513=185×513=1813=1513 3.6 \times \frac{5}{13} = \frac{18}{5} \times \frac{5}{13} = \frac{18}{13} = 1\frac{5}{13}

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