Answers

Add 98/81 and 84/18

1^st number: 1 17/81, 2^nd number: 4 12/18

98/81 + 84/18 is 476/81.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 18 is 162
   
   Next, find the equivalent fraction of both fractional numbers with denominator 162
2. For the 1st fraction, since 81 × 2 = 162,
   98/81 = 98 × 2/81 × 2 = 196/162
3. Likewise, for the 2nd fraction, since 18 × 9 = 162,
   84/18 = 84 × 9/18 × 9 = 756/162
4. Add the two like fractions:
   196/162 + 756/162 = 196 + 756/162 = 952/162
5. 952/162 simplified gives 476/81
6. So, 98/81 + 84/18 = 476/81
   In mixed form: 571/81

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