Answers

Add 30/81 and 42/16

1^st number: 30/81, 2^nd number: 2 10/16

30/81 + 42/16 is 647/216.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 16 is 1296
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1296
2. For the 1st fraction, since 81 × 16 = 1296,
   30/81 = 30 × 16/81 × 16 = 480/1296
3. Likewise, for the 2nd fraction, since 16 × 81 = 1296,
   42/16 = 42 × 81/16 × 81 = 3402/1296
4. Add the two like fractions:
   480/1296 + 3402/1296 = 480 + 3402/1296 = 3882/1296
5. 3882/1296 simplified gives 647/216
6. So, 30/81 + 42/16 = 647/216
   In mixed form: 2215/216

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