Add 7/20 and 30/15
1st number: 7/20, 2nd number: 2 0/15
7/20 + 30/15 is 47/20.
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,
30/15 = 30 × 4/15 × 4 = 120/60 - Add the two like fractions:
21/60 + 120/60 = 21 + 120/60 = 141/60 - 141/60 simplified gives 47/20
- So, 7/20 + 30/15 = 47/20
In mixed form: 27/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/20+30/15 7/20+60/15 7/40+30/15 21/20+30/15 7/20+90/15 7/60+30/15 7/20+30/45 35/20+30/15 7/20+30/75 49/20+30/15