Answers

Add 20/18 and 63/81

1^st number: 1 2/18, 2^nd number: 63/81

20/18 + 63/81 is 17/9.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 81 is 162
   
   Next, find the equivalent fraction of both fractional numbers with denominator 162
2. For the 1st fraction, since 18 × 9 = 162,
   20/18 = 20 × 9/18 × 9 = 180/162
3. Likewise, for the 2nd fraction, since 81 × 2 = 162,
   63/81 = 63 × 2/81 × 2 = 126/162
4. Add the two like fractions:
   180/162 + 126/162 = 180 + 126/162 = 306/162
5. 306/162 simplified gives 17/9
6. So, 20/18 + 63/81 = 17/9
   In mixed form: 18/9

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