Answers

Add 98/90 and 84/81

1^st number: 1 8/90, 2^nd number: 1 3/81

98/90 + 84/81 is 287/135.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 81 is 810
   
   Next, find the equivalent fraction of both fractional numbers with denominator 810
2. For the 1st fraction, since 90 × 9 = 810,
   98/90 = 98 × 9/90 × 9 = 882/810
3. Likewise, for the 2nd fraction, since 81 × 10 = 810,
   84/81 = 84 × 10/81 × 10 = 840/810
4. Add the two like fractions:
   882/810 + 840/810 = 882 + 840/810 = 1722/810
5. 1722/810 simplified gives 287/135
6. So, 98/90 + 84/81 = 287/135
   In mixed form: 217/135

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