Add 7/15 and 27/20
1st number: 7/15, 2nd number: 1 7/20
7/15 + 27/20 is 109/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
7/15 = 7 × 4/15 × 4 = 28/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
27/20 = 27 × 3/20 × 3 = 81/60 - Add the two like fractions:
28/60 + 81/60 = 28 + 81/60 = 109/60 - So, 7/15 + 27/20 = 109/60
In mixed form: 149/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/15+27/20 7/15+54/20 7/30+27/20 7/15+27/40 21/15+27/20 7/15+81/20 7/45+27/20 7/15+27/60 35/15+27/20 7/75+27/20 49/15+27/20