2 1/2
or 5/2 as an improper fraction
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621/2= 125/2
half of a sixtieth...
Half of 3 means 3 divided by 2 or 3 multipled by 1/2. Thus 1/2 X 3 = 3/2.
One half to the negative first power is equal to the reciprocal of one half raised to the first power. The reciprocal of one half is two, so (1/2)^(-1) = 1 / (1/2) = 1 * 2 = 2.
15 ÷ ½ = 15 x 2 =30 To divide fractions: multiply by the reciprocal of the second fraction.