Answers

Add 24/81 and 21/54

24/81 + 21/54 is 37/54.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 54 is 162
   
   Next, find the equivalent fraction of both fractional numbers with denominator 162
2. For the 1st fraction, since 81 × 2 = 162,
   24/81 = 24 × 2/81 × 2 = 48/162
3. Likewise, for the 2nd fraction, since 54 × 3 = 162,
   21/54 = 21 × 3/54 × 3 = 63/162
4. Add the two like fractions:
   48/162 + 63/162 = 48 + 63/162 = 111/162
5. 111/162 simplified gives 37/54
6. So, 24/81 + 21/54 = 37/54

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