Answers

Subtract 5/64 from 2/81

2/81 - 5/64 is -277/5184.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 64 is 5184
   
   Next, find the equivalent fraction of both fractional numbers with denominator 5184
2. For the 1st fraction, since 81 × 64 = 5184,
   2/81 = 2 × 64/81 × 64 = 128/5184
3. Likewise, for the 2nd fraction, since 64 × 81 = 5184,
   5/64 = 5 × 81/64 × 81 = 405/5184
4. Subtract the two like fractions:
   128/5184 - 405/5184 = 128 - 405/5184 = -277/5184

MathStep (Works offline)

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

Related: ⁴/₈₁-⁵/₆₄ ²/₈₁-¹⁰/₆₄ ⁶/₈₁-⁵/₆₄ ²/₈₁-¹⁵/₆₄ ¹⁰/₈₁-⁵/₆₄ ²/₈₁-²⁵/₆₄ ¹⁴/₈₁-⁵/₆₄ ²/₈₁-³⁵/₆₄

Subtract Fractions Calculator