Add 1/40 and 7/20
1/40 + 7/20 is 3/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
1/40 = 1 × 1/40 × 1 = 1/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
7/20 = 7 × 2/20 × 2 = 14/40 - Add the two like fractions:
1/40 + 14/40 = 1 + 14/40 = 15/40 - 15/40 simplified gives 3/8
- So, 1/40 + 7/20 = 3/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/40+7/20 1/40+14/20 1/80+7/20 1/40+7/40 3/40+7/20 1/40+21/20 1/40+7/60 5/40+7/20 1/40+35/20 7/40+7/20 1/40+49/20