Answers

Add 35/24 and 15/81

1^st number: 1 11/24, 2^nd number: 15/81

35/24 + 15/81 is 355/216.

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,
   35/24 = 35 × 27/24 × 27 = 945/648
3. Likewise, for the 2nd fraction, since 81 × 8 = 648,
   15/81 = 15 × 8/81 × 8 = 120/648
4. Add the two like fractions:
   945/648 + 120/648 = 945 + 120/648 = 1065/648
5. 1065/648 simplified gives 355/216
6. So, 35/24 + 15/81 = 355/216
   In mixed form: 1139/216

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