Add 63/7 and 63/20
1st number: 9 0/7, 2nd number: 3 3/20
63/7 + 63/20 is 243/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 7 × 20 = 140,
63/7 = 63 × 20/7 × 20 = 1260/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
63/20 = 63 × 7/20 × 7 = 441/140 - Add the two like fractions:
1260/140 + 441/140 = 1260 + 441/140 = 1701/140 - 1701/140 simplified gives 243/20
- So, 63/7 + 63/20 = 243/20
In mixed form: 123/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/14+63/20 63/7+63/40 63/21+63/20 63/7+63/60 63/35+63/20 63/49+63/20