Answers

Add 3/81 and 63/4

1^st number: 3/81, 2^nd number: 15 3/4

3/81 + 63/4 is 1705/108.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 4 is 324
   
   Next, find the equivalent fraction of both fractional numbers with denominator 324
2. For the 1st fraction, since 81 × 4 = 324,
   3/81 = 3 × 4/81 × 4 = 12/324
3. Likewise, for the 2nd fraction, since 4 × 81 = 324,
   63/4 = 63 × 81/4 × 81 = 5103/324
4. Add the two like fractions:
   12/324 + 5103/324 = 12 + 5103/324 = 5115/324
5. 5115/324 simplified gives 1705/108
6. So, 3/81 + 63/4 = 1705/108
   In mixed form: 1585/108

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