Add 15/20 and 7/15
15/20 + 7/15 is 73/60.
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,
15/20 = 15 × 3/20 × 3 = 45/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
7/15 = 7 × 4/15 × 4 = 28/60 - Add the two like fractions:
45/60 + 28/60 = 45 + 28/60 = 73/60 - So, 15/20 + 7/15 = 73/60
In mixed form: 113/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/20+7/15 15/20+14/15 15/40+7/15 15/20+7/30 45/20+7/15 15/20+21/15 15/60+7/15 15/20+7/45 75/20+7/15 15/20+35/15 15/20+7/75 15/20+49/15