Add 1/81 and 7/8
1/81 + 7/8 is 575/648.
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,
1/81 = 1 × 8/81 × 8 = 8/648 - Likewise, for the 2nd fraction, since 8 × 81 = 648,
7/8 = 7 × 81/8 × 81 = 567/648 - Add the two like fractions:
8/648 + 567/648 = 8 + 567/648 = 575/648 - So, 1/81 + 7/8 = 575/648
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/81+7/8 1/81+14/8 1/81+7/16 3/81+7/8 1/81+21/8 1/81+7/24 5/81+7/8 1/81+35/8 1/81+7/40 7/81+7/8 1/81+49/8 1/81+7/56