Answers

Add 70/30 and 80/75

1^st number: 2 10/30, 2^nd number: 1 5/75

70/30 + 80/75 is 17/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 75 is 150
   
   Next, find the equivalent fraction of both fractional numbers with denominator 150
2. For the 1st fraction, since 30 × 5 = 150,
   70/30 = 70 × 5/30 × 5 = 350/150
3. Likewise, for the 2nd fraction, since 75 × 2 = 150,
   80/75 = 80 × 2/75 × 2 = 160/150
4. Add the two like fractions:
   350/150 + 160/150 = 350 + 160/150 = 510/150
5. 510/150 simplified gives 17/5
6. So, 70/30 + 80/75 = 17/5
   In mixed form: 32/5

MathStep (Works offline)

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

Related: ⁷⁰/₆₀+⁸⁰/₇₅ ⁷⁰/₉₀+⁸⁰/₇₅

Add Fractions Calculator