Answers

Add 70/30 and 9/81

1^st number: 2 10/30, 2^nd number: 9/81

70/30 + 9/81 is 22/9.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 81 is 810
   
   Next, find the equivalent fraction of both fractional numbers with denominator 810
2. For the 1st fraction, since 30 × 27 = 810,
   70/30 = 70 × 27/30 × 27 = 1890/810
3. Likewise, for the 2nd fraction, since 81 × 10 = 810,
   9/81 = 9 × 10/81 × 10 = 90/810
4. Add the two like fractions:
   1890/810 + 90/810 = 1890 + 90/810 = 1980/810
5. 1980/810 simplified gives 22/9
6. So, 70/30 + 9/81 = 22/9
   In mixed form: 24/9

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