Subtracting Fractions with Unlike Denominators

Name: _______________________________
Date: _______________________________

Instructions: Find the common denominator, subtract the fractions, and simplify your answer to its lowest terms.

Section A: Subtract and Simplify

1. 3/4 - 1/2 = __________

2. 5/6 - 1/3 = __________

3. 7/8 - 1/4 = __________

4. 2/3 - 1/6 = __________

5. 5/8 - 1/2 = __________

6. 3/5 - 1/4 = __________

Section B: Challenge Problems

7. 7/10 - 2/5 = __________

8. 5/6 - 3/8 = __________

9. 4/5 - 2/3 = __________

10. 11/12 - 3/4 = __________

Section C: Word Problems

11. Sarah had 3/4 of a pizza. She ate 1/3 of the pizza. How much pizza is left?

Answer: __________

12. Tom walked 5/6 of a kilometre to school. His friend walked 2/3 of a kilometre. How much further did Tom walk?

Answer: __________

13. A recipe needs 7/8 cup of flour. Maria has already added 1/2 cup. How much more flour does she need to add?

Answer: __________

💡 Remember: Find the common denominator first, then subtract the numerators!