Answers

Add 7/24 and 9/81

7/24 + 9/81 is 29/72.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 24 and 81 is 648
   
   Next, find the equivalent fraction of both fractional numbers with denominator 648
2. For the 1st fraction, since 24 × 27 = 648,
   7/24 = 7 × 27/24 × 27 = 189/648
3. Likewise, for the 2nd fraction, since 81 × 8 = 648,
   9/81 = 9 × 8/81 × 8 = 72/648
4. Add the two like fractions:
   189/648 + 72/648 = 189 + 72/648 = 261/648
5. 261/648 simplified gives 29/72
6. So, 7/24 + 9/81 = 29/72

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