Add 7/20 and 10/15
7/20 + 10/15 is 61/60.
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,
7/20 = 7 × 3/20 × 3 = 21/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
10/15 = 10 × 4/15 × 4 = 40/60 - Add the two like fractions:
21/60 + 40/60 = 21 + 40/60 = 61/60 - So, 7/20 + 10/15 = 61/60
In mixed form: 11/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/20+10/15 7/20+20/15 7/40+10/15 7/20+10/30 21/20+10/15 7/20+30/15 7/60+10/15 7/20+10/45 35/20+10/15 7/20+50/15 7/20+10/75 49/20+10/15 7/20+70/15