Add 63/20 and 40/7
1st number: 3 3/20, 2nd number: 5 5/7
63/20 + 40/7 is 1241/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 7 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
63/20 = 63 × 7/20 × 7 = 441/140 - Likewise, for the 2nd fraction, since 7 × 20 = 140,
40/7 = 40 × 20/7 × 20 = 800/140 - Add the two like fractions:
441/140 + 800/140 = 441 + 800/140 = 1241/140 - So, 63/20 + 40/7 = 1241/140
In mixed form: 8121/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/20+80/7 63/40+40/7 63/20+40/14 63/60+40/7 63/20+40/21 63/20+40/35 63/20+40/49