Add 5/15 and 2/20
5/15 + 2/20 is 13/30.
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,
5/15 = 5 × 4/15 × 4 = 20/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
2/20 = 2 × 3/20 × 3 = 6/60 - Add the two like fractions:
20/60 + 6/60 = 20 + 6/60 = 26/60 - 26/60 simplified gives 13/30
- So, 5/15 + 2/20 = 13/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/15+2/20 5/15+4/20 5/30+2/20 5/15+2/40 5/15+6/20 5/45+2/20 5/15+2/60 25/15+2/20 5/15+10/20 5/75+2/20 35/15+2/20 5/15+14/20