Answers

Subtract 45/24 from 32/21

1^st number: 1 11/21, 2^nd number: 1 21/24

32/21 - 45/24 is -59/168.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 24 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 21 × 8 = 168,
   32/21 = 32 × 8/21 × 8 = 256/168
3. Likewise, for the 2nd fraction, since 24 × 7 = 168,
   45/24 = 45 × 7/24 × 7 = 315/168
4. Subtract the two like fractions:
   256/168 - 315/168 = 256 - 315/168 = -59/168

MathStep (Works offline)

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

Related: ⁶⁴/₂₁-⁴⁵/₂₄ ³²/₂₁-⁹⁰/₂₄ ³²/₄₂-⁴⁵/₂₄ ³²/₂₁-⁴⁵/₄₈ ⁹⁶/₂₁-⁴⁵/₂₄ ³²/₆₃-⁴⁵/₂₄ ³²/₂₁-⁴⁵/₇₂

Subtract Fractions Calculator