Add 3/70 and 60/21
1st number: 3/70, 2nd number: 2 18/21
3/70 + 60/21 is 29/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
3/70 = 3 × 3/70 × 3 = 9/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
60/21 = 60 × 10/21 × 10 = 600/210 - Add the two like fractions:
9/210 + 600/210 = 9 + 600/210 = 609/210 - 609/210 simplified gives 29/10
- So, 3/70 + 60/21 = 29/10
In mixed form: 29/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/70+60/21 3/70+60/42 9/70+60/21 3/70+60/63 15/70+60/21 21/70+60/21