Answers

Add 54/9 and 90/81

1^st number: 6 0/9, 2^nd number: 1 9/81

54/9 + 90/81 is 64/9.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 9 and 81 is 81
   
   Next, find the equivalent fraction of both fractional numbers with denominator 81
2. For the 1st fraction, since 9 × 9 = 81,
   54/9 = 54 × 9/9 × 9 = 486/81
3. Likewise, for the 2nd fraction, since 81 × 1 = 81,
   90/81 = 90 × 1/81 × 1 = 90/81
4. Add the two like fractions:
   486/81 + 90/81 = 486 + 90/81 = 576/81
5. 576/81 simplified gives 64/9
6. So, 54/9 + 90/81 = 64/9
   In mixed form: 71/9

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