Add 18/8 and 27/7, Solve 2 2/8 + 3 6/7 as a fraction

Add 18/8 and 27/7

1^st number: 2 2/8, 2^nd number: 3 6/7

18/8 + 27/7 is 171/28.

Find the least common denominator or LCM of the two denominators:
LCM of 8 and 7 is 56

Next, find the equivalent fraction of both fractional numbers with denominator 56
For the 1st fraction, since 8 × 7 = 56,
18/8 = 18 × 7/8 × 7 = 126/56
Likewise, for the 2nd fraction, since 7 × 8 = 56,
27/7 = 27 × 8/7 × 8 = 216/56
Add the two like fractions:
126/56 + 216/56 = 126 + 216/56 = 342/56
342/56 simplified gives 171/28
So, 18/8 + 27/7 = 171/28
In mixed form: 63/28

MathStep (Works offline)

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