The easiest way it to make the mixed number into an improper fraction and then multiply:
121/2 = (12 x 2 + 1)/2
= 25/2
⇒ 121/2 of 168 = 25/2 x 168
= (25 x 168)/2
= 2100
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fourteen. 1 ft. = 12 in. 168/12 = 14 in.
168"There are 168 inches in 14 feet. 14 feet x 12 inches/1 foot = 168 inches 1 foot = 12 inches
168 inches / 12 inches (in a foot) = 14 feet168 inches = 14 feet
1/14
half of 12 = 12/2 half of 12/2 = 12/4 = 6/2 = 3/1 = 3