Add 21/35 and 1/70
21/35 + 1/70 is 43/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 35 × 2 = 70,
21/35 = 21 × 2/35 × 2 = 42/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
1/70 = 1 × 1/70 × 1 = 1/70 - Add the two like fractions:
42/70 + 1/70 = 42 + 1/70 = 43/70 - So, 21/35 + 1/70 = 43/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/35+1/70 21/35+2/70 21/70+1/70 63/35+1/70 21/35+3/70 21/35+5/70 21/35+7/70