Answers

Add 81/2 and 54/56

1^st number: 40 1/2, 2^nd number: 54/56

81/2 + 54/56 is 1161/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 2 and 56 is 56
   
   Next, find the equivalent fraction of both fractional numbers with denominator 56
2. For the 1st fraction, since 2 × 28 = 56,
   81/2 = 81 × 28/2 × 28 = 2268/56
3. Likewise, for the 2nd fraction, since 56 × 1 = 56,
   54/56 = 54 × 1/56 × 1 = 54/56
4. Add the two like fractions:
   2268/56 + 54/56 = 2268 + 54/56 = 2322/56
5. 2322/56 simplified gives 1161/28
6. So, 81/2 + 54/56 = 1161/28
   In mixed form: 4113/28

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