Free Interactive Math Tool

Simplifying Fractions Practice

Reduce fractions to simplest form by finding the greatest common factor and dividing the numerator and denominator by the same number.

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New to Simplifying Fractions?

Learn How to Simplify Fractions First

Learn how to find the greatest common factor, divide the numerator and denominator by the same number, recognize simplest form, and avoid common fraction mistakes before beginning the practice activity.

Read the Simplifying Fractions Guide

How It Works

Simplify Fractions Step by Step

A fraction is in simplest form when its numerator and denominator have no common factor greater than one.

1

List the Factors

Think about the factors shared by the numerator and denominator.

2

Find the GCF

Identify the greatest number that divides evenly into both numbers.

3

Divide Both Numbers

Divide the numerator and denominator by the same greatest common factor.

4

Check Simplest Form

Confirm that the new numerator and denominator share no factor greater than one.

Interactive Practice

Simplifying Fractions

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Simplify the Fraction

12 18
1

Find GCF

2

Divide

3

Simplify

Step 1

Find the greatest common factor.

What is the greatest number that divides evenly into both the numerator and denominator?

Remember

Simplifying Fraction Rules

Divide Both Parts

Divide the numerator and denominator by the same nonzero number.

12/18 ÷ 6/6 = 2/3

Use the Greatest Common Factor

Dividing by the GCF reduces the fraction to simplest form in one step.

GCF(12, 18) = 6

Check for Common Factors

The final numerator and denominator should have no common factor greater than one.

GCF(2, 3) = 1

Keep Learning

Learn More About Simplifying Fractions

Review greatest common factors, step-by-step reduction, simplest form, and worked examples in the complete guide.

Read the Simplifying Fractions Guide