Answers

Subtract 84/81 from 16/27

1^st number: 16/27, 2^nd number: 1 3/81

16/27 - 84/81 is -4/9.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 27 and 81 is 81
   
   Next, find the equivalent fraction of both fractional numbers with denominator 81
2. For the 1st fraction, since 27 × 3 = 81,
   16/27 = 16 × 3/27 × 3 = 48/81
3. Likewise, for the 2nd fraction, since 81 × 1 = 81,
   84/81 = 84 × 1/81 × 1 = 84/81
4. Subtract the two like fractions:
   48/81 - 84/81 = 48 - 84/81 = -36/81
5. After reducing the fraction, the answer is -4/9

MathStep (Works offline)

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

Related: ³²/₂₇-⁸⁴/₈₁ ¹⁶/₅₄-⁸⁴/₈₁ ⁴⁸/₂₇-⁸⁴/₈₁ ¹⁶/₈₁-⁸⁴/₈₁ ⁸⁰/₂₇-⁸⁴/₈₁

Subtract Fractions Calculator