Add 81/9 and 3/7
1st number: 9 0/9, 2nd number: 3/7
81/9 + 3/7 is 66/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 7 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
81/9 = 81 × 7/9 × 7 = 567/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
3/7 = 3 × 9/7 × 9 = 27/63 - Add the two like fractions:
567/63 + 27/63 = 567 + 27/63 = 594/63 - 594/63 simplified gives 66/7
- So, 81/9 + 3/7 = 66/7
In mixed form: 93/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/9+6/7 81/18+3/7 81/9+3/14 81/9+9/7 81/27+3/7 81/9+3/21 81/9+15/7 81/45+3/7 81/9+3/35 81/9+21/7 81/63+3/7 81/9+3/49