Answers

Subtract 15/56 from 42/27

1^st number: 1 15/27, 2^nd number: 15/56

42/27 - 15/56 is 649/504.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 27 and 56 is 1512
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1512
2. For the 1st fraction, since 27 × 56 = 1512,
   42/27 = 42 × 56/27 × 56 = 2352/1512
3. Likewise, for the 2nd fraction, since 56 × 27 = 1512,
   15/56 = 15 × 27/56 × 27 = 405/1512
4. Subtract the two like fractions:
   2352/1512 - 405/1512 = 2352 - 405/1512 = 1947/1512
5. After reducing the fraction, the answer is 649/504
6. In mixed form: 1145/504

MathStep (Works offline)

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

Related: ⁸⁴/₂₇-¹⁵/₅₆ ⁴²/₂₇-³⁰/₅₆ ⁴²/₅₄-¹⁵/₅₆ ⁴²/₂₇-⁴⁵/₅₆ ⁴²/₈₁-¹⁵/₅₆ ⁴²/₂₇-⁷⁵/₅₆

Subtract Fractions Calculator