Answers

Subtract 49/32 from 8/42

1^st number: 8/42, 2^nd number: 1 17/32

8/42 - 49/32 is -901/672.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 32 is 672
   
   Next, find the equivalent fraction of both fractional numbers with denominator 672
2. For the 1st fraction, since 42 × 16 = 672,
   8/42 = 8 × 16/42 × 16 = 128/672
3. Likewise, for the 2nd fraction, since 32 × 21 = 672,
   49/32 = 49 × 21/32 × 21 = 1029/672
4. Subtract the two like fractions:
   128/672 - 1029/672 = 128 - 1029/672 = -901/672

MathStep (Works offline)

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

Related: ¹⁶/₄₂-⁴⁹/₃₂ ⁸/₄₂-⁹⁸/₃₂ ⁸/₈₄-⁴⁹/₃₂ ⁸/₄₂-⁴⁹/₆₄ ²⁴/₄₂-⁴⁹/₃₂ ⁸/₄₂-⁴⁹/₉₆ ⁴⁰/₄₂-⁴⁹/₃₂ ⁵⁶/₄₂-⁴⁹/₃₂

Subtract Fractions Calculator