Answers

Add 24/81 and 7/72

24/81 + 7/72 is 85/216.

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,
   24/81 = 24 × 8/81 × 8 = 192/648
3. Likewise, for the 2nd fraction, since 72 × 9 = 648,
   7/72 = 7 × 9/72 × 9 = 63/648
4. Add the two like fractions:
   192/648 + 63/648 = 192 + 63/648 = 255/648
5. 255/648 simplified gives 85/216
6. So, 24/81 + 7/72 = 85/216

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