Answers

Add 90/81 and 60/9

1^st number: 1 9/81, 2^nd number: 6 6/9

90/81 + 60/9 is 70/9.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 9 is 81
   
   Next, find the equivalent fraction of both fractional numbers with denominator 81
2. For the 1st fraction, since 81 × 1 = 81,
   90/81 = 90 × 1/81 × 1 = 90/81
3. Likewise, for the 2nd fraction, since 9 × 9 = 81,
   60/9 = 60 × 9/9 × 9 = 540/81
4. Add the two like fractions:
   90/81 + 540/81 = 90 + 540/81 = 630/81
5. 630/81 simplified gives 70/9
6. So, 90/81 + 60/9 = 70/9
   In mixed form: 77/9

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