Answers

Subtract 15/81 from 14/18

14/18 - 15/81 is 16/27.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 81 is 162
   
   Next, find the equivalent fraction of both fractional numbers with denominator 162
2. For the 1st fraction, since 18 × 9 = 162,
   14/18 = 14 × 9/18 × 9 = 126/162
3. Likewise, for the 2nd fraction, since 81 × 2 = 162,
   15/81 = 15 × 2/81 × 2 = 30/162
4. Subtract the two like fractions:
   126/162 - 30/162 = 126 - 30/162 = 96/162
5. After reducing the fraction, the answer is 16/27

MathStep (Works offline)

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

Related: ²⁸/₁₈-¹⁵/₈₁ ¹⁴/₁₈-³⁰/₈₁ ¹⁴/₃₆-¹⁵/₈₁ ⁴²/₁₈-¹⁵/₈₁ ¹⁴/₁₈-⁴⁵/₈₁ ¹⁴/₅₄-¹⁵/₈₁ ⁷⁰/₁₈-¹⁵/₈₁ ¹⁴/₁₈-⁷⁵/₈₁ ¹⁴/₉₀-¹⁵/₈₁ ⁹⁸/₁₈-¹⁵/₈₁

Subtract Fractions Calculator