Add 35/15 and 21/49
1st number: 2 5/15, 2nd number: 21/49
35/15 + 21/49 is 58/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 49 is 735
Next, find the equivalent fraction of both fractional numbers with denominator 735 - For the 1st fraction, since 15 × 49 = 735,
35/15 = 35 × 49/15 × 49 = 1715/735 - Likewise, for the 2nd fraction, since 49 × 15 = 735,
21/49 = 21 × 15/49 × 15 = 315/735 - Add the two like fractions:
1715/735 + 315/735 = 1715 + 315/735 = 2030/735 - 2030/735 simplified gives 58/21
- So, 35/15 + 21/49 = 58/21
In mixed form: 216/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/15+21/49 35/15+42/49 35/30+21/49 35/15+21/98 35/15+63/49 35/45+21/49 35/75+21/49