Add 63/7 and 28/20
1st number: 9 0/7, 2nd number: 1 8/20
63/7 + 28/20 is 52/5.
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,
28/20 = 28 × 7/20 × 7 = 196/140 - Add the two like fractions:
1260/140 + 196/140 = 1260 + 196/140 = 1456/140 - 1456/140 simplified gives 52/5
- So, 63/7 + 28/20 = 52/5
In mixed form: 102/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/7+56/20 63/14+28/20 63/7+28/40 63/7+84/20 63/21+28/20 63/7+28/60 63/35+28/20 63/49+28/20