Add 1/15 and 27/20
1st number: 1/15, 2nd number: 1 7/20
1/15 + 27/20 is 17/12.
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,
1/15 = 1 × 4/15 × 4 = 4/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
27/20 = 27 × 3/20 × 3 = 81/60 - Add the two like fractions:
4/60 + 81/60 = 4 + 81/60 = 85/60 - 85/60 simplified gives 17/12
- So, 1/15 + 27/20 = 17/12
In mixed form: 15/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/15+27/20 1/15+54/20 1/30+27/20 1/15+27/40 3/15+27/20 1/15+81/20 1/45+27/20 1/15+27/60 5/15+27/20 1/75+27/20 7/15+27/20