Answers

Add 10/81 and 20/18

1^st number: 10/81, 2^nd number: 1 2/18

10/81 + 20/18 is 100/81.

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,
   10/81 = 10 × 2/81 × 2 = 20/162
3. Likewise, for the 2nd fraction, since 18 × 9 = 162,
   20/18 = 20 × 9/18 × 9 = 180/162
4. Add the two like fractions:
   20/162 + 180/162 = 20 + 180/162 = 200/162
5. 200/162 simplified gives 100/81
6. So, 10/81 + 20/18 = 100/81
   In mixed form: 119/81

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