Add 81/5 and 6/7
1st number: 16 1/5, 2nd number: 6/7
81/5 + 6/7 is 597/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 7 is 35
Next, find the equivalent fraction of both fractional numbers with denominator 35 - For the 1st fraction, since 5 × 7 = 35,
81/5 = 81 × 7/5 × 7 = 567/35 - Likewise, for the 2nd fraction, since 7 × 5 = 35,
6/7 = 6 × 5/7 × 5 = 30/35 - Add the two like fractions:
567/35 + 30/35 = 567 + 30/35 = 597/35 - So, 81/5 + 6/7 = 597/35
In mixed form: 172/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/5+12/7 81/10+6/7 81/5+6/14 81/5+18/7 81/15+6/7 81/5+6/21 81/5+30/7 81/25+6/7 81/5+6/35 81/5+42/7 81/35+6/7 81/5+6/49