Add 1/15 and 1/12
1/15 + 1/12 is 3/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 12 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 12 × 5 = 60,
1/12 = 1 × 5/12 × 5 = 5/60 - Add the two like fractions:
4/60 + 5/60 = 4 + 5/60 = 9/60 - 9/60 simplified gives 3/20
- So, 1/15 + 1/12 = 3/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/15+1/12 1/15+2/12 1/30+1/12 1/15+1/24 3/15+1/12 1/15+3/12 1/45+1/12 1/15+1/36 5/15+1/12 1/15+5/12 1/75+1/12 1/15+1/60 7/15+1/12 1/15+7/12 1/15+1/84