Answers

Add 81/2 and 63/5

1^st number: 40 1/2, 2^nd number: 12 3/5

81/2 + 63/5 is 531/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 2 and 5 is 10
   
   Next, find the equivalent fraction of both fractional numbers with denominator 10
2. For the 1st fraction, since 2 × 5 = 10,
   81/2 = 81 × 5/2 × 5 = 405/10
3. Likewise, for the 2nd fraction, since 5 × 2 = 10,
   63/5 = 63 × 2/5 × 2 = 126/10
4. Add the two like fractions:
   405/10 + 126/10 = 405 + 126/10 = 531/10
5. So, 81/2 + 63/5 = 531/10
   In mixed form: 531/10

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