Add 1/15 and 8/20
1/15 + 8/20 is 7/15.
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,
8/20 = 8 × 3/20 × 3 = 24/60 - Add the two like fractions:
4/60 + 24/60 = 4 + 24/60 = 28/60 - 28/60 simplified gives 7/15
- So, 1/15 + 8/20 = 7/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/15+8/20 1/15+16/20 1/30+8/20 1/15+8/40 3/15+8/20 1/15+24/20 1/45+8/20 1/15+8/60 5/15+8/20 1/15+40/20 1/75+8/20 7/15+8/20 1/15+56/20