Add 15/27 and 5/14, Solve 15/27 + 5/14 as a fraction

Add 15/27 and 5/14

15/27 + 5/14 is 115/126.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 14 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 27 × 14 = 378,
15/27 = 15 × 14/27 × 14 = 210/378
Likewise, for the 2nd fraction, since 14 × 27 = 378,
5/14 = 5 × 27/14 × 27 = 135/378
Add the two like fractions:
210/378 + 135/378 = 210 + 135/378 = 345/378
345/378 simplified gives 115/126
So, 15/27 + 5/14 = 115/126

MathStep (Works offline)

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