Add 90/81 and 6/8
1st number: 1 9/81, 2nd number: 6/8
90/81 + 6/8 is 67/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 8 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 81 × 8 = 648,
90/81 = 90 × 8/81 × 8 = 720/648 - Likewise, for the 2nd fraction, since 8 × 81 = 648,
6/8 = 6 × 81/8 × 81 = 486/648 - Add the two like fractions:
720/648 + 486/648 = 720 + 486/648 = 1206/648 - 1206/648 simplified gives 67/36
- So, 90/81 + 6/8 = 67/36
In mixed form: 131/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/81+12/8 90/81+6/16 90/81+18/8 90/81+6/24 90/81+30/8 90/81+6/40 90/81+42/8 90/81+6/56