Add 5/18 and 6/40
5/18 + 6/40 is 77/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 18 × 20 = 360,
5/18 = 5 × 20/18 × 20 = 100/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
6/40 = 6 × 9/40 × 9 = 54/360 - Add the two like fractions:
100/360 + 54/360 = 100 + 54/360 = 154/360 - 154/360 simplified gives 77/180
- So, 5/18 + 6/40 = 77/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/18+6/40 5/18+12/40 5/36+6/40 5/18+6/80 15/18+6/40 5/18+18/40 5/54+6/40 25/18+6/40 5/18+30/40 5/90+6/40 35/18+6/40 5/18+42/40