Add 15/49 and 70/27, Solve 15/49 + 2 16/27 as a fraction

Add 15/49 and 70/27

1^st number: 15/49, 2^nd number: 2 16/27

15/49 + 70/27 is 3835/1323.

Find the least common denominator or LCM of the two denominators:
LCM of 49 and 27 is 1323

Next, find the equivalent fraction of both fractional numbers with denominator 1323
For the 1st fraction, since 49 × 27 = 1323,
15/49 = 15 × 27/49 × 27 = 405/1323
Likewise, for the 2nd fraction, since 27 × 49 = 1323,
70/27 = 70 × 49/27 × 49 = 3430/1323
Add the two like fractions:
405/1323 + 3430/1323 = 405 + 3430/1323 = 3835/1323
So, 15/49 + 70/27 = 3835/1323
In mixed form: 21189/1323

MathStep (Works offline)

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