Answers

Add 90/15 and 70/49

1^st number: 6 0/15, 2^nd number: 1 21/49

90/15 + 70/49 is 52/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 49 is 735
   
   Next, find the equivalent fraction of both fractional numbers with denominator 735
2. For the 1st fraction, since 15 × 49 = 735,
   90/15 = 90 × 49/15 × 49 = 4410/735
3. Likewise, for the 2nd fraction, since 49 × 15 = 735,
   70/49 = 70 × 15/49 × 15 = 1050/735
4. Add the two like fractions:
   4410/735 + 1050/735 = 4410 + 1050/735 = 5460/735
5. 5460/735 simplified gives 52/7
6. So, 90/15 + 70/49 = 52/7
   In mixed form: 73/7

MathStep (Works offline)

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

Related: ⁹⁰/₃₀+⁷⁰/₄₉ ⁹⁰/₁₅+⁷⁰/₉₈ ⁹⁰/₄₅+⁷⁰/₄₉ ⁹⁰/₇₅+⁷⁰/₄₉

Add Fractions Calculator