Answers

Subtract 28/64 from 14/42

14/42 - 28/64 is -5/48.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 64 is 1344
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1344
2. For the 1st fraction, since 42 × 32 = 1344,
   14/42 = 14 × 32/42 × 32 = 448/1344
3. Likewise, for the 2nd fraction, since 64 × 21 = 1344,
   28/64 = 28 × 21/64 × 21 = 588/1344
4. Subtract the two like fractions:
   448/1344 - 588/1344 = 448 - 588/1344 = -140/1344
5. After reducing the fraction, the answer is -5/48

MathStep (Works offline)

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

Related: ²⁸/₄₂-²⁸/₆₄ ¹⁴/₄₂-⁵⁶/₆₄ ¹⁴/₈₄-²⁸/₆₄ ¹⁴/₄₂-⁸⁴/₆₄ ⁷⁰/₄₂-²⁸/₆₄ ⁹⁸/₄₂-²⁸/₆₄

Subtract Fractions Calculator