Answers

Subtract 3/64 from 40/21

1^st number: 1 19/21, 2^nd number: 3/64

40/21 - 3/64 is 2497/1344.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 64 is 1344
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1344
2. For the 1st fraction, since 21 × 64 = 1344,
   40/21 = 40 × 64/21 × 64 = 2560/1344
3. Likewise, for the 2nd fraction, since 64 × 21 = 1344,
   3/64 = 3 × 21/64 × 21 = 63/1344
4. Subtract the two like fractions:
   2560/1344 - 63/1344 = 2560 - 63/1344 = 2497/1344
5. In mixed form: 11153/1344

MathStep (Works offline)

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

Related: ⁸⁰/₂₁-³/₆₄ ⁴⁰/₂₁-⁶/₆₄ ⁴⁰/₄₂-³/₆₄ ⁴⁰/₂₁-⁹/₆₄ ⁴⁰/₆₃-³/₆₄ ⁴⁰/₂₁-¹⁵/₆₄ ⁴⁰/₂₁-²¹/₆₄

Subtract Fractions Calculator