Answers

Add 90/81 and 40/45

1^st number: 1 9/81, 2^nd number: 40/45

90/81 + 40/45 is 2/1.

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,
   40/45 = 40 × 9/45 × 9 = 360/405
4. Add the two like fractions:
   450/405 + 360/405 = 450 + 360/405 = 810/405
5. 810/405 simplified gives 2/1
6. So, 90/81 + 40/45 = 2/1

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