Add 40/20 and 63/15
1st number: 2 0/20, 2nd number: 4 3/15
40/20 + 63/15 is 31/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
40/20 = 40 × 3/20 × 3 = 120/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
63/15 = 63 × 4/15 × 4 = 252/60 - Add the two like fractions:
120/60 + 252/60 = 120 + 252/60 = 372/60 - 372/60 simplified gives 31/5
- So, 40/20 + 63/15 = 31/5
In mixed form: 61/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/20+63/15 40/20+63/30 40/60+63/15 40/20+63/45 40/20+63/75