Add 40/12 and 7/20
1st number: 3 4/12, 2nd number: 7/20
40/12 + 7/20 is 221/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
40/12 = 40 × 5/12 × 5 = 200/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
7/20 = 7 × 3/20 × 3 = 21/60 - Add the two like fractions:
200/60 + 21/60 = 200 + 21/60 = 221/60 - So, 40/12 + 7/20 = 221/60
In mixed form: 341/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/12+7/20 40/12+14/20 40/24+7/20 40/12+7/40 40/12+21/20 40/36+7/20 40/12+7/60 40/12+35/20 40/60+7/20 40/12+49/20 40/84+7/20