Answers

Add 81/45 and 36/18

1^st number: 1 36/45, 2^nd number: 2 0/18

81/45 + 36/18 is 19/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 18 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 45 × 2 = 90,
   81/45 = 81 × 2/45 × 2 = 162/90
3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
   36/18 = 36 × 5/18 × 5 = 180/90
4. Add the two like fractions:
   162/90 + 180/90 = 162 + 180/90 = 342/90
5. 342/90 simplified gives 19/5
6. So, 81/45 + 36/18 = 19/5
   In mixed form: 34/5

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