Answers

Add 81/2 and 27/80

1^st number: 40 1/2, 2^nd number: 27/80

81/2 + 27/80 is 3267/80.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 2 and 80 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 2 × 40 = 80,
   81/2 = 81 × 40/2 × 40 = 3240/80
3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
   27/80 = 27 × 1/80 × 1 = 27/80
4. Add the two like fractions:
   3240/80 + 27/80 = 3240 + 27/80 = 3267/80
5. So, 81/2 + 27/80 = 3267/80
   In mixed form: 4067/80

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