Answers

Subtract 15/21 from 42/21

1^st number: 2 0/21, 2^nd number: 15/21

42/21 - 15/21 is 9/7.

Steps for subtracting fractions

1. Subtract the two fractions:
   42/21 - 15/21 = 42 - 15/21 = 27/21
2. After reducing the fraction, the answer is 9/7
3. In mixed form: 12/7

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁸⁴/₂₁-¹⁵/₂₁ ⁴²/₂₁-³⁰/₂₁ ⁴²/₂₁-¹⁵/₄₂ ⁴²/₂₁-⁴⁵/₂₁ ⁴²/₆₃-¹⁵/₂₁ ⁴²/₂₁-¹⁵/₆₃ ⁴²/₂₁-⁷⁵/₂₁

Subtract Fractions Calculator