Answers

Add 90/81 and 70/10

1^st number: 1 9/81, 2^nd number: 7 0/10

90/81 + 70/10 is 73/9.

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,
   90/81 = 90 × 10/81 × 10 = 900/810
3. Likewise, for the 2nd fraction, since 10 × 81 = 810,
   70/10 = 70 × 81/10 × 81 = 5670/810
4. Add the two like fractions:
   900/810 + 5670/810 = 900 + 5670/810 = 6570/810
5. 6570/810 simplified gives 73/9
6. So, 90/81 + 70/10 = 73/9
   In mixed form: 81/9

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