Add 7/15 and 35/70
7/15 + 35/70 is 29/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 15 × 14 = 210,
7/15 = 7 × 14/15 × 14 = 98/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
35/70 = 35 × 3/70 × 3 = 105/210 - Add the two like fractions:
98/210 + 105/210 = 98 + 105/210 = 203/210 - 203/210 simplified gives 29/30
- So, 7/15 + 35/70 = 29/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/15+35/70 7/30+35/70 21/15+35/70 7/45+35/70 35/15+35/70 7/75+35/70 49/15+35/70