Answers

Subtract 2/21 from 49/28

1^st number: 1 21/28, 2^nd number: 2/21

49/28 - 2/21 is 139/84.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 21 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 28 × 3 = 84,
   49/28 = 49 × 3/28 × 3 = 147/84
3. Likewise, for the 2nd fraction, since 21 × 4 = 84,
   2/21 = 2 × 4/21 × 4 = 8/84
4. Subtract the two like fractions:
   147/84 - 8/84 = 147 - 8/84 = 139/84
5. In mixed form: 155/84

MathStep (Works offline)

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

Related: ⁹⁸/₂₈-²/₂₁ ⁴⁹/₂₈-⁴/₂₁ ⁴⁹/₅₆-²/₂₁ ⁴⁹/₂₈-²/₄₂ ⁴⁹/₂₈-⁶/₂₁ ⁴⁹/₈₄-²/₂₁ ⁴⁹/₂₈-²/₆₃ ⁴⁹/₂₈-¹⁰/₂₁ ⁴⁹/₂₈-¹⁴/₂₁

Subtract Fractions Calculator