Answers

Add 9/81 and 75/10

1^st number: 9/81, 2^nd number: 7 5/10

9/81 + 75/10 is 137/18.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 10 is 810
   
   Next, find the equivalent fraction of both fractional numbers with denominator 810
2. For the 1st fraction, since 81 × 10 = 810,
   9/81 = 9 × 10/81 × 10 = 90/810
3. Likewise, for the 2nd fraction, since 10 × 81 = 810,
   75/10 = 75 × 81/10 × 81 = 6075/810
4. Add the two like fractions:
   90/810 + 6075/810 = 90 + 6075/810 = 6165/810
5. 6165/810 simplified gives 137/18
6. So, 9/81 + 75/10 = 137/18
   In mixed form: 711/18

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