Add 15/56 and 30/63
15/56 + 30/63 is 125/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
15/56 = 15 × 9/56 × 9 = 135/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
30/63 = 30 × 8/63 × 8 = 240/504 - Add the two like fractions:
135/504 + 240/504 = 135 + 240/504 = 375/504 - 375/504 simplified gives 125/168
- So, 15/56 + 30/63 = 125/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/56+30/63 15/56+60/63 45/56+30/63 15/56+90/63 75/56+30/63