½ Fraction Division Calculator

Divide one fraction by another using the reciprocal rule and calculate the decimal result.

No ratings yet — be the first
Rate it: ★ ★ ★ ★ ★

Enter details

Enter the numerator of the first fraction.
Denominator must not be zero.
Enter the numerator of the second fraction.
Denominator must not be zero.

Fill in the details and click Calculate to see your results.


Also available in our Android app, with charts and full breakdown tables.

📘 About the Fraction Division

Keep the first fraction unchanged.

Invert the second fraction and multiply.

The second numerator must not be zero because division by zero is undefined.

🧮 Formula

Formula
a/b ÷ c/d = ad/bc
a/b ÷ c/d = ad/bc

✏️ Worked example

2/3 ÷ 4/5

You enter
First Numerator2
First Denominator3
Second Numerator4
Second Denominator5
You get
Result Numerator10
Result Denominator12
Decimal Result0.833333

The result is 10/12, equivalent to 5/6.

Try this example →

🧭 How to use this calculator

What you enter

  • First NumeratorEnter the numerator of the first fraction.
  • First DenominatorDenominator must not be zero.
  • Second NumeratorEnter the numerator of the second fraction.
  • Second DenominatorDenominator must not be zero.

What you get

  • Result Numerator
  • Result Denominator
  • Decimal Result

💡 Important notes

  • Both denominators must be non-zero.
  • The second numerator must also be non-zero.

❓ Frequently asked questions

Why do we flip the second fraction?

Dividing by a fraction is equivalent to multiplying by its reciprocal.

Can I divide by zero?

No. Division by zero is undefined.

Does the result need simplification?

Not necessarily; this calculator shows the direct numerator and denominator.