Add 7/8 and 80/7
1st number: 7/8, 2nd number: 11 3/7
7/8 + 80/7 is 689/56.
Steps for adding fractions
- 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,
7/8 = 7 × 7/8 × 7 = 49/56 - Likewise, for the 2nd fraction, since 7 × 8 = 56,
80/7 = 80 × 8/7 × 8 = 640/56 - Add the two like fractions:
49/56 + 640/56 = 49 + 640/56 = 689/56 - So, 7/8 + 80/7 = 689/56
In mixed form: 1217/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/8+80/7 7/16+80/7 7/8+80/14 21/8+80/7 7/24+80/7 7/8+80/21 35/8+80/7 7/40+80/7 7/8+80/35 49/8+80/7 7/56+80/7 7/8+80/49