Add 10/20 and 63/56
1st number: 10/20, 2nd number: 1 7/56
10/20 + 63/56 is 13/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 20 × 14 = 280,
10/20 = 10 × 14/20 × 14 = 140/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
63/56 = 63 × 5/56 × 5 = 315/280 - Add the two like fractions:
140/280 + 315/280 = 140 + 315/280 = 455/280 - 455/280 simplified gives 13/8
- So, 10/20 + 63/56 = 13/8
In mixed form: 15/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/40+63/56 30/20+63/56 10/60+63/56 50/20+63/56 70/20+63/56