Answers

Add 90/56 and 6/72

1^st number: 1 34/56, 2^nd number: 6/72

90/56 + 6/72 is 71/42.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 56 × 9 = 504,
   90/56 = 90 × 9/56 × 9 = 810/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   6/72 = 6 × 7/72 × 7 = 42/504
4. Add the two like fractions:
   810/504 + 42/504 = 810 + 42/504 = 852/504
5. 852/504 simplified gives 71/42
6. So, 90/56 + 6/72 = 71/42
   In mixed form: 129/42

MathStep (Works offline)

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

Related: ⁹⁰/₅₆+¹²/₇₂ ⁹⁰/₅₆+¹⁸/₇₂ ⁹⁰/₅₆+³⁰/₇₂ ⁹⁰/₅₆+⁴²/₇₂

Add Fractions Calculator