Add 10/27 and 81/56, Solve 10/27 + 1 25/56 as a fraction

Add 10/27 and 81/56

1^st number: 10/27, 2^nd number: 1 25/56

10/27 + 81/56 is 2747/1512.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 56 is 1512

Next, find the equivalent fraction of both fractional numbers with denominator 1512
For the 1st fraction, since 27 × 56 = 1512,
10/27 = 10 × 56/27 × 56 = 560/1512
Likewise, for the 2nd fraction, since 56 × 27 = 1512,
81/56 = 81 × 27/56 × 27 = 2187/1512
Add the two like fractions:
560/1512 + 2187/1512 = 560 + 2187/1512 = 2747/1512
So, 10/27 + 81/56 = 2747/1512
In mixed form: 11235/1512

MathStep (Works offline)

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