Simplifying Fractions Calculator
Reduce a fraction to simplest form by dividing by the greatest common factor.
Simplifying Fractions Calculator
3/4 The greatest common factor is 6.
How to Simplify a Fraction
To simplify a fraction, divide the numerator and denominator by their greatest common factor.
18/24 = (18 / 6) / (24 / 6) = 3/4The value of the fraction does not change. Only the way it is written changes.
Worked Examples
| Fraction | Greatest common factor | Simplified form |
|---|---|---|
| 12/16 | 4 | 3/4 |
| 15/25 | 5 | 3/5 |
| 21/35 | 7 | 3/5 |
| 45/60 | 15 | 3/4 |
Tips
- If both numbers are even, divide by 2 first.
- If both numbers end in 0 or 5, try dividing by 5.
- A fraction is simplest when the top and bottom have no common factor except 1.
FAQ
Is 4/6 simplified?
No. Divide both parts by 2 to get 2/3.
Is an improper fraction allowed?
Yes. The calculator can simplify improper fractions too.