Answers

Add 7/81 and 6/8

7/81 + 6/8 is 271/324.

Steps for adding fractions

1. 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
2. For the 1st fraction, since 81 × 8 = 648,
   7/81 = 7 × 8/81 × 8 = 56/648
3. Likewise, for the 2nd fraction, since 8 × 81 = 648,
   6/8 = 6 × 81/8 × 81 = 486/648
4. Add the two like fractions:
   56/648 + 486/648 = 56 + 486/648 = 542/648
5. 542/648 simplified gives 271/324
6. So, 7/81 + 6/8 = 271/324

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