Answers

Subtract 21/64 from 10/36

10/36 - 21/64 is -29/576.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 36 and 64 is 576
   
   Next, find the equivalent fraction of both fractional numbers with denominator 576
2. For the 1st fraction, since 36 × 16 = 576,
   10/36 = 10 × 16/36 × 16 = 160/576
3. Likewise, for the 2nd fraction, since 64 × 9 = 576,
   21/64 = 21 × 9/64 × 9 = 189/576
4. Subtract the two like fractions:
   160/576 - 189/576 = 160 - 189/576 = -29/576

MathStep (Works offline)

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

Related: ²⁰/₃₆-²¹/₆₄ ¹⁰/₃₆-⁴²/₆₄ ¹⁰/₇₂-²¹/₆₄ ³⁰/₃₆-²¹/₆₄ ¹⁰/₃₆-⁶³/₆₄ ⁵⁰/₃₆-²¹/₆₄ ⁷⁰/₃₆-²¹/₆₄

Subtract Fractions Calculator