Add 7/40 and 7/12
7/40 + 7/12 is 91/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 12 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
7/40 = 7 × 3/40 × 3 = 21/120 - Likewise, for the 2nd fraction, since 12 × 10 = 120,
7/12 = 7 × 10/12 × 10 = 70/120 - Add the two like fractions:
21/120 + 70/120 = 21 + 70/120 = 91/120 - So, 7/40 + 7/12 = 91/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/40+7/12 7/40+14/12 7/80+7/12 7/40+7/24 21/40+7/12 7/40+21/12 7/40+7/36 35/40+7/12 7/40+35/12 7/40+7/60 49/40+7/12 7/40+49/12 7/40+7/84