Add 35/15 and 21/36
1st number: 2 5/15, 2nd number: 21/36
35/15 + 21/36 is 35/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 15 × 12 = 180,
35/15 = 35 × 12/15 × 12 = 420/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
21/36 = 21 × 5/36 × 5 = 105/180 - Add the two like fractions:
420/180 + 105/180 = 420 + 105/180 = 525/180 - 525/180 simplified gives 35/12
- So, 35/15 + 21/36 = 35/12
In mixed form: 211/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/15+21/36 35/15+42/36 35/30+21/36 35/15+21/72 35/15+63/36 35/45+21/36 35/75+21/36