Add 15/36 and 18/40
15/36 + 18/40 is 13/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 36 × 10 = 360,
15/36 = 15 × 10/36 × 10 = 150/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
18/40 = 18 × 9/40 × 9 = 162/360 - Add the two like fractions:
150/360 + 162/360 = 150 + 162/360 = 312/360 - 312/360 simplified gives 13/15
- So, 15/36 + 18/40 = 13/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/36+18/40 15/36+36/40 15/72+18/40 15/36+18/80 45/36+18/40 15/36+54/40 75/36+18/40 15/36+90/40