Add 2/20 and 7/40
2/20 + 7/40 is 11/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 20 × 2 = 40,
2/20 = 2 × 2/20 × 2 = 4/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
7/40 = 7 × 1/40 × 1 = 7/40 - Add the two like fractions:
4/40 + 7/40 = 4 + 7/40 = 11/40 - So, 2/20 + 7/40 = 11/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/20+7/40 2/20+14/40 2/40+7/40 2/20+7/80 6/20+7/40 2/20+21/40 2/60+7/40 10/20+7/40 2/20+35/40 14/20+7/40 2/20+49/40