Answers

Add 5/81 and 28/27

1^st number: 5/81, 2^nd number: 1 1/27

5/81 + 28/27 is 89/81.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 27 is 81
   
   Next, find the equivalent fraction of both fractional numbers with denominator 81
2. For the 1st fraction, since 81 × 1 = 81,
   5/81 = 5 × 1/81 × 1 = 5/81
3. Likewise, for the 2nd fraction, since 27 × 3 = 81,
   28/27 = 28 × 3/27 × 3 = 84/81
4. Add the two like fractions:
   5/81 + 84/81 = 5 + 84/81 = 89/81
5. So, 5/81 + 28/27 = 89/81
   In mixed form: 18/81

MathStep (Works offline)

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

Related: ¹⁰/₈₁+²⁸/₂₇ ⁵/₈₁+⁵⁶/₂₇ ⁵/₈₁+²⁸/₅₄ ¹⁵/₈₁+²⁸/₂₇ ⁵/₈₁+⁸⁴/₂₇ ⁵/₈₁+²⁸/₈₁ ²⁵/₈₁+²⁸/₂₇ ³⁵/₈₁+²⁸/₂₇

Add Fractions Calculator