Add 27/70 and 35/15, Solve 27/70 + 2 5/15 as a fraction

Add 27/70 and 35/15

1^st number: 27/70, 2^nd number: 2 5/15

27/70 + 35/15 is 571/210.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 15 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 70 × 3 = 210,
27/70 = 27 × 3/70 × 3 = 81/210
Likewise, for the 2nd fraction, since 15 × 14 = 210,
35/15 = 35 × 14/15 × 14 = 490/210
Add the two like fractions:
81/210 + 490/210 = 81 + 490/210 = 571/210
So, 27/70 + 35/15 = 571/210
In mixed form: 2151/210

MathStep (Works offline)

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