Answers

Add 70/81 and 90/4

1^st number: 70/81, 2^nd number: 22 2/4

70/81 + 90/4 is 3785/162.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 4 is 324
   
   Next, find the equivalent fraction of both fractional numbers with denominator 324
2. For the 1st fraction, since 81 × 4 = 324,
   70/81 = 70 × 4/81 × 4 = 280/324
3. Likewise, for the 2nd fraction, since 4 × 81 = 324,
   90/4 = 90 × 81/4 × 81 = 7290/324
4. Add the two like fractions:
   280/324 + 7290/324 = 280 + 7290/324 = 7570/324
5. 7570/324 simplified gives 3785/162
6. So, 70/81 + 90/4 = 3785/162
   In mixed form: 2359/162

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