Answers

Add 30/16 and 45/81

1^st number: 1 14/16, 2^nd number: 45/81

30/16 + 45/81 is 175/72.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 16 and 81 is 1296
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1296
2. For the 1st fraction, since 16 × 81 = 1296,
   30/16 = 30 × 81/16 × 81 = 2430/1296
3. Likewise, for the 2nd fraction, since 81 × 16 = 1296,
   45/81 = 45 × 16/81 × 16 = 720/1296
4. Add the two like fractions:
   2430/1296 + 720/1296 = 2430 + 720/1296 = 3150/1296
5. 3150/1296 simplified gives 175/72
6. So, 30/16 + 45/81 = 175/72
   In mixed form: 231/72

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