Solve 1/2 ÷ 1/2: Step-by-Step Fraction Division

Fraction Division with Reciprocal Method

Complete the following exercise:

12:12=? \frac{1}{2}:\frac{1}{2}=\text{?}

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:05 Let's solve this problem together!
00:08 Remember to divide the top numbers by each other, and the bottom numbers by each other.
00:14 Now, let's find the answers.
00:17 Any number divided by itself is always one.
00:21 And that's how we find the solution!

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

Complete the following exercise:

12:12=? \frac{1}{2}:\frac{1}{2}=\text{?}

2

Step-by-step solution

To solve the division of two fractions 12÷12 \frac{1}{2} \div \frac{1}{2} , we follow these steps:

  • Step 1: Recognize that dividing by a fraction is equivalent to multiplying by its reciprocal. In this case, we replace division with multiplication by flipping the second fraction.
  • Step 2: Thus, 12÷12 \frac{1}{2} \div \frac{1}{2} becomes 12×21 \frac{1}{2} \times \frac{2}{1} .
  • Step 3: Perform the multiplication: Multiply the numerators and the denominators.
    Numerator: 1×2=2 1 \times 2 = 2
    Denominator: 2×1=2 2 \times 1 = 2
  • Step 4: Simplify the result: The fraction 22\frac{2}{2} simplifies to 1.

Thus, the result of the division 12÷12 \frac{1}{2} \div \frac{1}{2} is 1 1 .

3

Final Answer

1 1

Key Points to Remember

Essential concepts to master this topic
  • Rule: Division by fraction equals multiplication by its reciprocal
  • Technique: Convert 12÷12 \frac{1}{2} \div \frac{1}{2} to 12×21 \frac{1}{2} \times \frac{2}{1}
  • Check: Any number divided by itself equals 1, so 12÷12=1 \frac{1}{2} \div \frac{1}{2} = 1

Common Mistakes

Avoid these frequent errors
  • Multiplying the fractions directly without using reciprocal
    Don't multiply 12×12=14 \frac{1}{2} \times \frac{1}{2} = \frac{1}{4} ! This gives you multiplication, not division. Always flip the second fraction first, then 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 when dividing?

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Division by a fraction is the same as multiplication by its reciprocal. When you flip 12 \frac{1}{2} to get 21 \frac{2}{1} , you're finding what to multiply by instead of divide by.

What's the reciprocal of a fraction?

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The reciprocal is the fraction flipped upside down. For 12 \frac{1}{2} , the reciprocal is 21 \frac{2}{1} or just 2. The numerator and denominator swap places!

Why does any number divided by itself equal 1?

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Think about it: How many halves fit into one half? Exactly 1! This is true for any non-zero number. 34÷34=1 \frac{3}{4} \div \frac{3}{4} = 1 too!

Can I use this method for all fraction division problems?

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Yes! The reciprocal method works for all fraction division. Just remember: flip the second fraction, then multiply. It's that simple!

What if I get confused about which fraction to flip?

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Always flip the fraction after the division sign. In 12÷12 \frac{1}{2} \div \frac{1}{2} , flip the second 12 \frac{1}{2} to get 21 \frac{2}{1} , then multiply.

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