Answers

Add 27/70 and 84/81

1^st number: 27/70, 2^nd number: 1 3/81

27/70 + 84/81 is 2689/1890.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 81 is 5670
   
   Next, find the equivalent fraction of both fractional numbers with denominator 5670
2. For the 1st fraction, since 70 × 81 = 5670,
   27/70 = 27 × 81/70 × 81 = 2187/5670
3. Likewise, for the 2nd fraction, since 81 × 70 = 5670,
   84/81 = 84 × 70/81 × 70 = 5880/5670
4. Add the two like fractions:
   2187/5670 + 5880/5670 = 2187 + 5880/5670 = 8067/5670
5. 8067/5670 simplified gives 2689/1890
6. So, 27/70 + 84/81 = 2689/1890
   In mixed form: 1799/1890

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