Answer:
1/8th
Step-by-step explanation: A unit fraction is a rational number written as a fraction where the numerator is one and the denominator is a positive integer. A unit fraction is therefore the reciprocal of a positive integer, 1/n. Examples are 1/1, 1/2, 1/3, 1/4 ,1/5, etc. so in this case the cake is eight slices so 1/8
You need to divide the amount he has by the serving size.
(3/4) / (1/6) =
= 3/4 * 6/1
= 18/4
= 4 1/2
He can make 4 1/2 servings.