Answers

Add 90/2 and 70/81

1^st number: 45 0/2, 2^nd number: 70/81

90/2 + 70/81 is 3715/81.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 2 and 81 is 162
   
   Next, find the equivalent fraction of both fractional numbers with denominator 162
2. For the 1st fraction, since 2 × 81 = 162,
   90/2 = 90 × 81/2 × 81 = 7290/162
3. Likewise, for the 2nd fraction, since 81 × 2 = 162,
   70/81 = 70 × 2/81 × 2 = 140/162
4. Add the two like fractions:
   7290/162 + 140/162 = 7290 + 140/162 = 7430/162
5. 7430/162 simplified gives 3715/81
6. So, 90/2 + 70/81 = 3715/81
   In mixed form: 4570/81

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