Answers

Subtract 21/42 from 72/42

1^st number: 1 30/42, 2^nd number: 21/42

72/42 - 21/42 is 17/14.

Steps for subtracting fractions

1. Subtract the two fractions:
   72/42 - 21/42 = 72 - 21/42 = 51/42
2. After reducing the fraction, the answer is 17/14
3. In mixed form: 13/14

MathStep (Works offline)

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

Related: ⁷²/₈₄-²¹/₄₂ ⁷²/₄₂-²¹/₈₄ ⁷²/₄₂-⁶³/₄₂

Subtract Fractions Calculator