Add 15/7 and 70/27, Solve 2 1/7 + 2 16/27 as a fraction

Add 15/7 and 70/27

1^st number: 2 1/7, 2^nd number: 2 16/27

15/7 + 70/27 is 895/189.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 27 is 189

Next, find the equivalent fraction of both fractional numbers with denominator 189
For the 1st fraction, since 7 × 27 = 189,
15/7 = 15 × 27/7 × 27 = 405/189
Likewise, for the 2nd fraction, since 27 × 7 = 189,
70/27 = 70 × 7/27 × 7 = 490/189
Add the two like fractions:
405/189 + 490/189 = 405 + 490/189 = 895/189
So, 15/7 + 70/27 = 895/189
In mixed form: 4139/189

MathStep (Works offline)

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