Add 40/7 and 7/8
1st number: 5 5/7, 2nd number: 7/8
40/7 + 7/8 is 369/56.
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,
40/7 = 40 × 8/7 × 8 = 320/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
7/8 = 7 × 7/8 × 7 = 49/56 - Add the two like fractions:
320/56 + 49/56 = 320 + 49/56 = 369/56 - So, 40/7 + 7/8 = 369/56
In mixed form: 633/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/7+7/8 40/7+14/8 40/14+7/8 40/7+7/16 40/7+21/8 40/21+7/8 40/7+7/24 40/7+35/8 40/35+7/8 40/7+7/40 40/7+49/8 40/49+7/8 40/7+7/56