Answers

Add 4/16 and 84/81

1^st number: 4/16, 2^nd number: 1 3/81

4/16 + 84/81 is 139/108.

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,
   4/16 = 4 × 81/16 × 81 = 324/1296
3. Likewise, for the 2nd fraction, since 81 × 16 = 1296,
   84/81 = 84 × 16/81 × 16 = 1344/1296
4. Add the two like fractions:
   324/1296 + 1344/1296 = 324 + 1344/1296 = 1668/1296
5. 1668/1296 simplified gives 139/108
6. So, 4/16 + 84/81 = 139/108
   In mixed form: 131/108

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