Answers

Subtract 2/64 from 12/21

12/21 - 2/64 is 121/224.

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,
   12/21 = 12 × 64/21 × 64 = 768/1344
3. Likewise, for the 2nd fraction, since 64 × 21 = 1344,
   2/64 = 2 × 21/64 × 21 = 42/1344
4. Subtract the two like fractions:
   768/1344 - 42/1344 = 768 - 42/1344 = 726/1344
5. After reducing the fraction, the answer is 121/224

MathStep (Works offline)

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

Related: ²⁴/₂₁-²/₆₄ ¹²/₂₁-⁴/₆₄ ¹²/₄₂-²/₆₄ ³⁶/₂₁-²/₆₄ ¹²/₂₁-⁶/₆₄ ¹²/₆₃-²/₆₄ ⁶⁰/₂₁-²/₆₄ ¹²/₂₁-¹⁰/₆₄ ⁸⁴/₂₁-²/₆₄ ¹²/₂₁-¹⁴/₆₄

Subtract Fractions Calculator