Add 80/7 and 84/8
1st number: 11 3/7, 2nd number: 10 4/8
80/7 + 84/8 is 307/14.
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,
80/7 = 80 × 8/7 × 8 = 640/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
84/8 = 84 × 7/8 × 7 = 588/56 - Add the two like fractions:
640/56 + 588/56 = 640 + 588/56 = 1228/56 - 1228/56 simplified gives 307/14
- So, 80/7 + 84/8 = 307/14
In mixed form: 2113/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/14+84/8 80/7+84/16 80/21+84/8 80/7+84/24 80/35+84/8 80/7+84/40 80/49+84/8 80/7+84/56