Answers

Add 3/84 and 98/81

1^st number: 3/84, 2^nd number: 1 17/81

3/84 + 98/81 is 2825/2268.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 81 is 2268
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2268
2. For the 1st fraction, since 84 × 27 = 2268,
   3/84 = 3 × 27/84 × 27 = 81/2268
3. Likewise, for the 2nd fraction, since 81 × 28 = 2268,
   98/81 = 98 × 28/81 × 28 = 2744/2268
4. Add the two like fractions:
   81/2268 + 2744/2268 = 81 + 2744/2268 = 2825/2268
5. So, 3/84 + 98/81 = 2825/2268
   In mixed form: 1557/2268

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