Answers

Subtract 4/81 from 6/5

1^st number: 1 1/5, 2^nd number: 4/81

6/5 - 4/81 is 466/405.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 81 is 405
   
   Next, find the equivalent fraction of both fractional numbers with denominator 405
2. For the 1st fraction, since 5 × 81 = 405,
   6/5 = 6 × 81/5 × 81 = 486/405
3. Likewise, for the 2nd fraction, since 81 × 5 = 405,
   4/81 = 4 × 5/81 × 5 = 20/405
4. Subtract the two like fractions:
   486/405 - 20/405 = 486 - 20/405 = 466/405
5. In mixed form: 161/405

MathStep (Works offline)

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

Related: ¹²/₅-⁴/₈₁ ⁶/₅-⁸/₈₁ ⁶/₁₀-⁴/₈₁ ¹⁸/₅-⁴/₈₁ ⁶/₅-¹²/₈₁ ⁶/₁₅-⁴/₈₁ ³⁰/₅-⁴/₈₁ ⁶/₅-²⁰/₈₁ ⁶/₂₅-⁴/₈₁ ⁴²/₅-⁴/₈₁ ⁶/₅-²⁸/₈₁ ⁶/₃₅-⁴/₈₁

Subtract Fractions Calculator