Answers

Add 27/9 and 70/80

1^st number: 3 0/9, 2^nd number: 70/80

27/9 + 70/80 is 31/8.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 9 and 80 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 9 × 80 = 720,
   27/9 = 27 × 80/9 × 80 = 2160/720
3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
   70/80 = 70 × 9/80 × 9 = 630/720
4. Add the two like fractions:
   2160/720 + 630/720 = 2160 + 630/720 = 2790/720
5. 2790/720 simplified gives 31/8
6. So, 27/9 + 70/80 = 31/8
   In mixed form: 37/8

MathStep (Works offline)

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

Related: ⁵⁴/₉+⁷⁰/₈₀ ²⁷/₁₈+⁷⁰/₈₀ ⁸¹/₉+⁷⁰/₈₀ ²⁷/₄₅+⁷⁰/₈₀ ²⁷/₆₃+⁷⁰/₈₀

Add Fractions Calculator