Add 6/70 and 21/6, Solve 6/70 + 3 3/6 as a fraction

Add 6/70 and 21/6

1^st number: 6/70, 2^nd number: 3 3/6

6/70 + 21/6 is 251/70.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 6 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 70 × 3 = 210,
6/70 = 6 × 3/70 × 3 = 18/210
Likewise, for the 2nd fraction, since 6 × 35 = 210,
21/6 = 21 × 35/6 × 35 = 735/210
Add the two like fractions:
18/210 + 735/210 = 18 + 735/210 = 753/210
753/210 simplified gives 251/70
So, 6/70 + 21/6 = 251/70
In mixed form: 341/70

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad