Add 6/7 and 6/8
6/7 + 6/8 is 45/28.
Steps for adding fractions
- 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,
6/7 = 6 × 8/7 × 8 = 48/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
6/8 = 6 × 7/8 × 7 = 42/56 - Add the two like fractions:
48/56 + 42/56 = 48 + 42/56 = 90/56 - 90/56 simplified gives 45/28
- So, 6/7 + 6/8 = 45/28
In mixed form: 117/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/7+6/8 6/7+12/8 6/14+6/8 6/7+6/16 18/7+6/8 6/7+18/8 6/21+6/8 6/7+6/24 30/7+6/8 6/7+30/8 6/35+6/8 6/7+6/40 42/7+6/8 6/7+42/8 6/49+6/8 6/7+6/56