Add 7/20 and 40/12
1st number: 7/20, 2nd number: 3 4/12
7/20 + 40/12 is 221/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
7/20 = 7 × 3/20 × 3 = 21/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
40/12 = 40 × 5/12 × 5 = 200/60 - Add the two like fractions:
21/60 + 200/60 = 21 + 200/60 = 221/60 - So, 7/20 + 40/12 = 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: 14/20+40/12 7/20+80/12 7/40+40/12 7/20+40/24 21/20+40/12 7/60+40/12 7/20+40/36 35/20+40/12 7/20+40/60 49/20+40/12 7/20+40/84