Add 63/7 and 12/20
1st number: 9 0/7, 2nd number: 12/20
63/7 + 12/20 is 48/5.
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,
12/20 = 12 × 7/20 × 7 = 84/140 - Add the two like fractions:
1260/140 + 84/140 = 1260 + 84/140 = 1344/140 - 1344/140 simplified gives 48/5
- So, 63/7 + 12/20 = 48/5
In mixed form: 93/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/7+24/20 63/14+12/20 63/7+12/40 63/7+36/20 63/21+12/20 63/7+12/60 63/7+60/20 63/35+12/20 63/7+84/20 63/49+12/20