Answers

Add 80/40 and 70/12

1^st number: 2 0/40, 2^nd number: 5 10/12

80/40 + 70/12 is 47/6.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 12 is 120
   
   Next, find the equivalent fraction of both fractional numbers with denominator 120
2. For the 1st fraction, since 40 × 3 = 120,
   80/40 = 80 × 3/40 × 3 = 240/120
3. Likewise, for the 2nd fraction, since 12 × 10 = 120,
   70/12 = 70 × 10/12 × 10 = 700/120
4. Add the two like fractions:
   240/120 + 700/120 = 240 + 700/120 = 940/120
5. 940/120 simplified gives 47/6
6. So, 80/40 + 70/12 = 47/6
   In mixed form: 75/6

MathStep (Works offline)

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

Related: ⁸⁰/₄₀+⁷⁰/₂₄ ⁸⁰/₄₀+⁷⁰/₃₆ ⁸⁰/₄₀+⁷⁰/₆₀ ⁸⁰/₄₀+⁷⁰/₈₄

Add Fractions Calculator