Add 20/8 and 63/7
1st number: 2 4/8, 2nd number: 9 0/7
20/8 + 63/7 is 23/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 7 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 8 × 7 = 56,
20/8 = 20 × 7/8 × 7 = 140/56 - Likewise, for the 2nd fraction, since 7 × 8 = 56,
63/7 = 63 × 8/7 × 8 = 504/56 - Add the two like fractions:
140/56 + 504/56 = 140 + 504/56 = 644/56 - 644/56 simplified gives 23/2
- So, 20/8 + 63/7 = 23/2
In mixed form: 111/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/8+63/7 20/16+63/7 20/8+63/14 60/8+63/7 20/24+63/7 20/8+63/21 20/40+63/7 20/8+63/35 20/56+63/7 20/8+63/49