Answers

Add 70/10 and 28/81

1^st number: 7 0/10, 2^nd number: 28/81

70/10 + 28/81 is 595/81.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 81 is 810
   
   Next, find the equivalent fraction of both fractional numbers with denominator 810
2. For the 1st fraction, since 10 × 81 = 810,
   70/10 = 70 × 81/10 × 81 = 5670/810
3. Likewise, for the 2nd fraction, since 81 × 10 = 810,
   28/81 = 28 × 10/81 × 10 = 280/810
4. Add the two like fractions:
   5670/810 + 280/810 = 5670 + 280/810 = 5950/810
5. 5950/810 simplified gives 595/81
6. So, 70/10 + 28/81 = 595/81
   In mixed form: 728/81

MathStep (Works offline)

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

Related: ⁷⁰/₁₀+⁵⁶/₈₁ ⁷⁰/₂₀+²⁸/₈₁ ⁷⁰/₁₀+⁸⁴/₈₁ ⁷⁰/₃₀+²⁸/₈₁ ⁷⁰/₅₀+²⁸/₈₁

Add Fractions Calculator