Answers

Add 90/30 and 70/81

1^st number: 3 0/30, 2^nd number: 70/81

90/30 + 70/81 is 313/81.

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,
   90/30 = 90 × 27/30 × 27 = 2430/810
3. Likewise, for the 2nd fraction, since 81 × 10 = 810,
   70/81 = 70 × 10/81 × 10 = 700/810
4. Add the two like fractions:
   2430/810 + 700/810 = 2430 + 700/810 = 3130/810
5. 3130/810 simplified gives 313/81
6. So, 90/30 + 70/81 = 313/81
   In mixed form: 370/81

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