Answers

Subtract 10/81 from 3/12

3/12 - 10/81 is 41/324.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 81 is 324
   
   Next, find the equivalent fraction of both fractional numbers with denominator 324
2. For the 1st fraction, since 12 × 27 = 324,
   3/12 = 3 × 27/12 × 27 = 81/324
3. Likewise, for the 2nd fraction, since 81 × 4 = 324,
   10/81 = 10 × 4/81 × 4 = 40/324
4. Subtract the two like fractions:
   81/324 - 40/324 = 81 - 40/324 = 41/324

MathStep (Works offline)

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

Related: ⁶/₁₂-¹⁰/₈₁ ³/₁₂-²⁰/₈₁ ³/₂₄-¹⁰/₈₁ ⁹/₁₂-¹⁰/₈₁ ³/₁₂-³⁰/₈₁ ³/₃₆-¹⁰/₈₁ ¹⁵/₁₂-¹⁰/₈₁ ³/₁₂-⁵⁰/₈₁ ³/₆₀-¹⁰/₈₁ ²¹/₁₂-¹⁰/₈₁ ³/₁₂-⁷⁰/₈₁ ³/₈₄-¹⁰/₈₁

Subtract Fractions Calculator