Answers

Add 63/2 and 90/81

1^st number: 31 1/2, 2^nd number: 1 9/81

63/2 + 90/81 is 587/18.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 2 and 81 is 162
   
   Next, find the equivalent fraction of both fractional numbers with denominator 162
2. For the 1st fraction, since 2 × 81 = 162,
   63/2 = 63 × 81/2 × 81 = 5103/162
3. Likewise, for the 2nd fraction, since 81 × 2 = 162,
   90/81 = 90 × 2/81 × 2 = 180/162
4. Add the two like fractions:
   5103/162 + 180/162 = 5103 + 180/162 = 5283/162
5. 5283/162 simplified gives 587/18
6. So, 63/2 + 90/81 = 587/18
   In mixed form: 3211/18

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