Add 12/20 and 40/15
1st number: 12/20, 2nd number: 2 10/15
12/20 + 40/15 is 49/15.
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,
12/20 = 12 × 3/20 × 3 = 36/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
40/15 = 40 × 4/15 × 4 = 160/60 - Add the two like fractions:
36/60 + 160/60 = 36 + 160/60 = 196/60 - 196/60 simplified gives 49/15
- So, 12/20 + 40/15 = 49/15
In mixed form: 34/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/20+40/15 12/20+80/15 12/40+40/15 12/20+40/30 36/20+40/15 12/60+40/15 12/20+40/45 60/20+40/15 12/20+40/75 84/20+40/15