Answers

Add 60/72 and 10/81

60/72 + 10/81 is 155/162.

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,
   60/72 = 60 × 9/72 × 9 = 540/648
3. Likewise, for the 2nd fraction, since 81 × 8 = 648,
   10/81 = 10 × 8/81 × 8 = 80/648
4. Add the two like fractions:
   540/648 + 80/648 = 540 + 80/648 = 620/648
5. 620/648 simplified gives 155/162
6. So, 60/72 + 10/81 = 155/162

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