Add 25/7 and 6/8, Solve 3 4/7 + 6/8 as a fraction

Add 25/7 and 6/8

1^st number: 3 4/7, 2^nd number: 6/8

25/7 + 6/8 is 121/28.

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

Next, find the equivalent fraction of both fractional numbers with denominator 56
For the 1st fraction, since 7 × 8 = 56,
25/7 = 25 × 8/7 × 8 = 200/56
Likewise, for the 2nd fraction, since 8 × 7 = 56,
6/8 = 6 × 7/8 × 7 = 42/56
Add the two like fractions:
200/56 + 42/56 = 200 + 42/56 = 242/56
242/56 simplified gives 121/28
So, 25/7 + 6/8 = 121/28
In mixed form: 49/28

MathStep (Works offline)

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