Add 15/28 and 3/36
15/28 + 3/36 is 13/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
15/28 = 15 × 9/28 × 9 = 135/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
3/36 = 3 × 7/36 × 7 = 21/252 - Add the two like fractions:
135/252 + 21/252 = 135 + 21/252 = 156/252 - 156/252 simplified gives 13/21
- So, 15/28 + 3/36 = 13/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/28+3/36 15/28+6/36 15/56+3/36 15/28+3/72 45/28+3/36 15/28+9/36 15/84+3/36 75/28+3/36 15/28+15/36 15/28+21/36