Answers

Add 81/2 and 40/8

1^st number: 40 1/2, 2^nd number: 5 0/8

81/2 + 40/8 is 91/2.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 2 and 8 is 8
   
   Next, find the equivalent fraction of both fractional numbers with denominator 8
2. For the 1st fraction, since 2 × 4 = 8,
   81/2 = 81 × 4/2 × 4 = 324/8
3. Likewise, for the 2nd fraction, since 8 × 1 = 8,
   40/8 = 40 × 1/8 × 1 = 40/8
4. Add the two like fractions:
   324/8 + 40/8 = 324 + 40/8 = 364/8
5. 364/8 simplified gives 91/2
6. So, 81/2 + 40/8 = 91/2
   In mixed form: 451/2

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