Add 1/21 and 6/70
1/21 + 6/70 is 2/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
1/21 = 1 × 10/21 × 10 = 10/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
6/70 = 6 × 3/70 × 3 = 18/210 - Add the two like fractions:
10/210 + 18/210 = 10 + 18/210 = 28/210 - 28/210 simplified gives 2/15
- So, 1/21 + 6/70 = 2/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/21+6/70 1/21+12/70 1/42+6/70 3/21+6/70 1/21+18/70 1/63+6/70 5/21+6/70 1/21+30/70 7/21+6/70 1/21+42/70