Answers

Add 72/56 and 30/15

1^st number: 1 16/56, 2^nd number: 2 0/15

72/56 + 30/15 is 23/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 15 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 56 × 15 = 840,
   72/56 = 72 × 15/56 × 15 = 1080/840
3. Likewise, for the 2nd fraction, since 15 × 56 = 840,
   30/15 = 30 × 56/15 × 56 = 1680/840
4. Add the two like fractions:
   1080/840 + 1680/840 = 1080 + 1680/840 = 2760/840
5. 2760/840 simplified gives 23/7
6. So, 72/56 + 30/15 = 23/7
   In mixed form: 32/7

MathStep (Works offline)

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

Related: ⁷²/₅₆+⁶⁰/₁₅ ⁷²/₅₆+⁹⁰/₁₅ ⁷²/₅₆+³⁰/₄₅ ⁷²/₅₆+³⁰/₇₅

Add Fractions Calculator