An interesting way to think about this is to make use of the associative property of multiplication.
... 24 × 47 1/2 inches = (24 inches) × 47 1/2 . . . . associate inches with the other number
Now, you know that 24 inches is 2 feet, so you can finish the problem
... (2 feet) × (47 1/2) = (2×47 + 2×1/2) feet = 95 feet
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Another way to think about this is
... 24 × 47 1/2 inches = 24 × (48 inches - 1/2 inch)
... = 24 × (4 feet - 1/2 inch)
... = 96 feet - 24×1/2 inch
.. = 96 feet - 12 inch
... = 95 feet
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The straightforward way to do this is to find the total number of inches, then convert that to feet.
... 24 × 47 1/2 inches = 24×47.5 inches = 1140 inches
Multiplying by the units conversion factor (1 ft)/(12 inches), we get
... (1140 in)×(1 ft)/(12 in) = 95 ft