Answers

Subtract 21/81 from 84/6

1^st number: 14 0/6, 2^nd number: 21/81

84/6 - 21/81 is 371/27.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 6 and 81 is 162
   
   Next, find the equivalent fraction of both fractional numbers with denominator 162
2. For the 1st fraction, since 6 × 27 = 162,
   84/6 = 84 × 27/6 × 27 = 2268/162
3. Likewise, for the 2nd fraction, since 81 × 2 = 162,
   21/81 = 21 × 2/81 × 2 = 42/162
4. Subtract the two like fractions:
   2268/162 - 42/162 = 2268 - 42/162 = 2226/162
5. After reducing the fraction, the answer is 371/27
6. In mixed form: 1320/27

MathStep (Works offline)

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

Related: ⁸⁴/₆-⁴²/₈₁ ⁸⁴/₁₂-²¹/₈₁ ⁸⁴/₆-⁶³/₈₁ ⁸⁴/₁₈-²¹/₈₁ ⁸⁴/₃₀-²¹/₈₁ ⁸⁴/₄₂-²¹/₈₁

Subtract Fractions Calculator