Add 42/7 and 7/8
1st number: 6 0/7, 2nd number: 7/8
42/7 + 7/8 is 55/8.
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,
42/7 = 42 × 8/7 × 8 = 336/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
7/8 = 7 × 7/8 × 7 = 49/56 - Add the two like fractions:
336/56 + 49/56 = 336 + 49/56 = 385/56 - 385/56 simplified gives 55/8
- So, 42/7 + 7/8 = 55/8
In mixed form: 67/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/7+7/8 42/7+14/8 42/14+7/8 42/7+7/16 42/7+21/8 42/21+7/8 42/7+7/24 42/7+35/8 42/35+7/8 42/7+7/40 42/7+49/8 42/49+7/8 42/7+7/56