Answers

Add 2/72 and 35/81

2/72 + 35/81 is 149/324.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 81 is 648
   
   Next, find the equivalent fraction of both fractional numbers with denominator 648
2. For the 1st fraction, since 72 × 9 = 648,
   2/72 = 2 × 9/72 × 9 = 18/648
3. Likewise, for the 2nd fraction, since 81 × 8 = 648,
   35/81 = 35 × 8/81 × 8 = 280/648
4. Add the two like fractions:
   18/648 + 280/648 = 18 + 280/648 = 298/648
5. 298/648 simplified gives 149/324
6. So, 2/72 + 35/81 = 149/324

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