Answers

Subtract 4/27 from 25/21

1^st number: 1 4/21, 2^nd number: 4/27

25/21 - 4/27 is 197/189.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 27 is 189
   
   Next, find the equivalent fraction of both fractional numbers with denominator 189
2. For the 1st fraction, since 21 × 9 = 189,
   25/21 = 25 × 9/21 × 9 = 225/189
3. Likewise, for the 2nd fraction, since 27 × 7 = 189,
   4/27 = 4 × 7/27 × 7 = 28/189
4. Subtract the two like fractions:
   225/189 - 28/189 = 225 - 28/189 = 197/189
5. In mixed form: 18/189

MathStep (Works offline)

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

Related: ⁵⁰/₂₁-⁴/₂₇ ²⁵/₂₁-⁸/₂₇ ²⁵/₄₂-⁴/₂₇ ²⁵/₂₁-⁴/₅₄ ⁷⁵/₂₁-⁴/₂₇ ²⁵/₂₁-¹²/₂₇ ²⁵/₆₃-⁴/₂₇ ²⁵/₂₁-⁴/₈₁ ²⁵/₂₁-²⁰/₂₇ ²⁵/₂₁-²⁸/₂₇

Subtract Fractions Calculator