Add 35/70 and 60/21
1st number: 35/70, 2nd number: 2 18/21
35/70 + 60/21 is 47/14.
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,
35/70 = 35 × 3/70 × 3 = 105/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
60/21 = 60 × 10/21 × 10 = 600/210 - Add the two like fractions:
105/210 + 600/210 = 105 + 600/210 = 705/210 - 705/210 simplified gives 47/14
- So, 35/70 + 60/21 = 47/14
In mixed form: 35/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 35/70+60/42 35/70+60/63