Add 15/18 and 6/40
15/18 + 6/40 is 59/60.
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,
15/18 = 15 × 20/18 × 20 = 300/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
6/40 = 6 × 9/40 × 9 = 54/360 - Add the two like fractions:
300/360 + 54/360 = 300 + 54/360 = 354/360 - 354/360 simplified gives 59/60
- So, 15/18 + 6/40 = 59/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/18+6/40 15/18+12/40 15/36+6/40 15/18+6/80 45/18+6/40 15/18+18/40 15/54+6/40 75/18+6/40 15/18+30/40 15/90+6/40 15/18+42/40