Add 3/20 and 12/15
3/20 + 12/15 is 19/20.
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,
12/15 = 12 × 4/15 × 4 = 48/60 - Add the two like fractions:
9/60 + 48/60 = 9 + 48/60 = 57/60 - 57/60 simplified gives 19/20
- So, 3/20 + 12/15 = 19/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/20+12/15 3/20+24/15 3/40+12/15 3/20+12/30 9/20+12/15 3/20+36/15 3/60+12/15 3/20+12/45 15/20+12/15 3/20+60/15 3/20+12/75 21/20+12/15 3/20+84/15