Add 12/20 and 40/60
12/20 + 40/60 is 19/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 60 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 60 × 1 = 60,
40/60 = 40 × 1/60 × 1 = 40/60 - Add the two like fractions:
36/60 + 40/60 = 36 + 40/60 = 76/60 - 76/60 simplified gives 19/15
- So, 12/20 + 40/60 = 19/15
In mixed form: 14/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/20+40/60 12/20+80/60 12/40+40/60 36/20+40/60 12/60+40/60 60/20+40/60 84/20+40/60