Answers

Add 40/15 and 75/70

1^st number: 2 10/15, 2^nd number: 1 5/70

40/15 + 75/70 is 157/42.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 70 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 15 × 14 = 210,
   40/15 = 40 × 14/15 × 14 = 560/210
3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
   75/70 = 75 × 3/70 × 3 = 225/210
4. Add the two like fractions:
   560/210 + 225/210 = 560 + 225/210 = 785/210
5. 785/210 simplified gives 157/42
6. So, 40/15 + 75/70 = 157/42
   In mixed form: 331/42

MathStep (Works offline)

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

Related: ⁸⁰/₁₅+⁷⁵/₇₀ ⁴⁰/₃₀+⁷⁵/₇₀ ⁴⁰/₄₅+⁷⁵/₇₀ ⁴⁰/₇₅+⁷⁵/₇₀

Add Fractions Calculator