Answers

Add 90/81 and 56/45

1^st number: 1 9/81, 2^nd number: 1 11/45

90/81 + 56/45 is 106/45.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 45 is 405
   
   Next, find the equivalent fraction of both fractional numbers with denominator 405
2. For the 1st fraction, since 81 × 5 = 405,
   90/81 = 90 × 5/81 × 5 = 450/405
3. Likewise, for the 2nd fraction, since 45 × 9 = 405,
   56/45 = 56 × 9/45 × 9 = 504/405
4. Add the two like fractions:
   450/405 + 504/405 = 450 + 504/405 = 954/405
5. 954/405 simplified gives 106/45
6. So, 90/81 + 56/45 = 106/45
   In mixed form: 216/45

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