Answers

Add 90/24 and 5/81

1^st number: 3 18/24, 2^nd number: 5/81

90/24 + 5/81 is 1235/324.

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,
   90/24 = 90 × 27/24 × 27 = 2430/648
3. Likewise, for the 2nd fraction, since 81 × 8 = 648,
   5/81 = 5 × 8/81 × 8 = 40/648
4. Add the two like fractions:
   2430/648 + 40/648 = 2430 + 40/648 = 2470/648
5. 2470/648 simplified gives 1235/324
6. So, 90/24 + 5/81 = 1235/324
   In mixed form: 3263/324

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