Add 7/70 and 21/35
7/70 + 21/35 is 7/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 35 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
7/70 = 7 × 1/70 × 1 = 7/70 - Likewise, for the 2nd fraction, since 35 × 2 = 70,
21/35 = 21 × 2/35 × 2 = 42/70 - Add the two like fractions:
7/70 + 42/70 = 7 + 42/70 = 49/70 - 49/70 simplified gives 7/10
- So, 7/70 + 21/35 = 7/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/70+21/35 7/70+42/35 7/70+21/70 21/70+21/35 7/70+63/35 35/70+21/35 49/70+21/35