Answers

Add 3/81 and 60/72

3/81 + 60/72 is 47/54.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 72 is 648
   
   Next, find the equivalent fraction of both fractional numbers with denominator 648
2. For the 1st fraction, since 81 × 8 = 648,
   3/81 = 3 × 8/81 × 8 = 24/648
3. Likewise, for the 2nd fraction, since 72 × 9 = 648,
   60/72 = 60 × 9/72 × 9 = 540/648
4. Add the two like fractions:
   24/648 + 540/648 = 24 + 540/648 = 564/648
5. 564/648 simplified gives 47/54
6. So, 3/81 + 60/72 = 47/54

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