Answers

Subtract 8/81 from 63/15

1^st number: 4 3/15, 2^nd number: 8/81

63/15 - 8/81 is 1661/405.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 81 is 405
   
   Next, find the equivalent fraction of both fractional numbers with denominator 405
2. For the 1st fraction, since 15 × 27 = 405,
   63/15 = 63 × 27/15 × 27 = 1701/405
3. Likewise, for the 2nd fraction, since 81 × 5 = 405,
   8/81 = 8 × 5/81 × 5 = 40/405
4. Subtract the two like fractions:
   1701/405 - 40/405 = 1701 - 40/405 = 1661/405
5. In mixed form: 441/405

MathStep (Works offline)

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

Related: ⁶³/₁₅-¹⁶/₈₁ ⁶³/₃₀-⁸/₈₁ ⁶³/₁₅-²⁴/₈₁ ⁶³/₄₅-⁸/₈₁ ⁶³/₁₅-⁴⁰/₈₁ ⁶³/₇₅-⁸/₈₁ ⁶³/₁₅-⁵⁶/₈₁

Subtract Fractions Calculator