Add 7/8 and 6/81
7/8 + 6/81 is 205/216.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 81 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 8 × 81 = 648,
7/8 = 7 × 81/8 × 81 = 567/648 - Likewise, for the 2nd fraction, since 81 × 8 = 648,
6/81 = 6 × 8/81 × 8 = 48/648 - Add the two like fractions:
567/648 + 48/648 = 567 + 48/648 = 615/648 - 615/648 simplified gives 205/216
- So, 7/8 + 6/81 = 205/216
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/8+6/81 7/8+12/81 7/16+6/81 21/8+6/81 7/8+18/81 7/24+6/81 35/8+6/81 7/8+30/81 7/40+6/81 49/8+6/81 7/8+42/81 7/56+6/81