Answers

Subtract 32/45 from 25/21

1^st number: 1 4/21, 2^nd number: 32/45

25/21 - 32/45 is 151/315.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 45 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 21 × 15 = 315,
   25/21 = 25 × 15/21 × 15 = 375/315
3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
   32/45 = 32 × 7/45 × 7 = 224/315
4. Subtract the two like fractions:
   375/315 - 224/315 = 375 - 224/315 = 151/315

MathStep (Works offline)

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

Related: ⁵⁰/₂₁-³²/₄₅ ²⁵/₂₁-⁶⁴/₄₅ ²⁵/₄₂-³²/₄₅ ²⁵/₂₁-³²/₉₀ ⁷⁵/₂₁-³²/₄₅ ²⁵/₂₁-⁹⁶/₄₅ ²⁵/₆₃-³²/₄₅

Subtract Fractions Calculator