Add 81/7 and 10/80
1st number: 11 4/7, 2nd number: 10/80
81/7 + 10/80 is 655/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 7 × 80 = 560,
81/7 = 81 × 80/7 × 80 = 6480/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
10/80 = 10 × 7/80 × 7 = 70/560 - Add the two like fractions:
6480/560 + 70/560 = 6480 + 70/560 = 6550/560 - 6550/560 simplified gives 655/56
- So, 81/7 + 10/80 = 655/56
In mixed form: 1139/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/7+20/80 81/14+10/80 81/7+30/80 81/21+10/80 81/7+50/80 81/35+10/80 81/7+70/80 81/49+10/80