Answers

Add 15/63 and 54/56

15/63 + 54/56 is 101/84.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 56 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 63 × 8 = 504,
   15/63 = 15 × 8/63 × 8 = 120/504
3. Likewise, for the 2nd fraction, since 56 × 9 = 504,
   54/56 = 54 × 9/56 × 9 = 486/504
4. Add the two like fractions:
   120/504 + 486/504 = 120 + 486/504 = 606/504
5. 606/504 simplified gives 101/84
6. So, 15/63 + 54/56 = 101/84
   In mixed form: 117/84

MathStep (Works offline)

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

Related: ³⁰/₆₃+⁵⁴/₅₆ ⁴⁵/₆₃+⁵⁴/₅₆ ⁷⁵/₆₃+⁵⁴/₅₆

Add Fractions Calculator