Add 2/40 and 7/18
2/40 + 7/18 is 79/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 18 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
2/40 = 2 × 9/40 × 9 = 18/360 - Likewise, for the 2nd fraction, since 18 × 20 = 360,
7/18 = 7 × 20/18 × 20 = 140/360 - Add the two like fractions:
18/360 + 140/360 = 18 + 140/360 = 158/360 - 158/360 simplified gives 79/180
- So, 2/40 + 7/18 = 79/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/40+7/18 2/40+14/18 2/80+7/18 2/40+7/36 6/40+7/18 2/40+21/18 2/40+7/54 10/40+7/18 2/40+35/18 2/40+7/90 14/40+7/18 2/40+49/18