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Subtracting Fractions with Same Denominator

Learn to subtract fractions when they share the same denominator.

15 minGrade 6

Introduction

Subtracting fractions follows similar rules to adding them. When denominators are the same, the process is straightforward.

The Subtraction Rule

Subtract the numerators and keep the denominator unchanged.

Example

5/8 - 2/8 = 3/8

Real-World Application

Subtraction helps us find how much is left or the difference between amounts.

Example

If you have 5/6 of a pizza and eat 2/6, you have 3/6 (or 1/2) left.

Key Takeaways

  • 1Subtract numerators, keep the denominator
  • 2The result should be positive or zero
  • 3Simplify your answer when possible

Practice Problems

Test your understanding with these questions

1

What is 7/9 - 4/9?

2

Calculate: 5/6 - 1/6