Add 3/20 and 4/15
3/20 + 4/15 is 5/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
3/20 = 3 × 3/20 × 3 = 9/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
4/15 = 4 × 4/15 × 4 = 16/60 - Add the two like fractions:
9/60 + 16/60 = 9 + 16/60 = 25/60 - 25/60 simplified gives 5/12
- So, 3/20 + 4/15 = 5/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/20+4/15 3/20+8/15 3/40+4/15 3/20+4/30 9/20+4/15 3/20+12/15 3/60+4/15 3/20+4/45 15/20+4/15 3/20+20/15 3/20+4/75 21/20+4/15 3/20+28/15