Answers

Add 20/81 and 98/12

1^st number: 20/81, 2^nd number: 8 2/12

20/81 + 98/12 is 1363/162.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 12 is 324
   
   Next, find the equivalent fraction of both fractional numbers with denominator 324
2. For the 1st fraction, since 81 × 4 = 324,
   20/81 = 20 × 4/81 × 4 = 80/324
3. Likewise, for the 2nd fraction, since 12 × 27 = 324,
   98/12 = 98 × 27/12 × 27 = 2646/324
4. Add the two like fractions:
   80/324 + 2646/324 = 80 + 2646/324 = 2726/324
5. 2726/324 simplified gives 1363/162
6. So, 20/81 + 98/12 = 1363/162
   In mixed form: 867/162

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