Three eighths of the cast in a musical have to sing. What fraction of the cast does not have to sing?
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To find the fraction of the cast that does not have to sing, we need to subtract the fraction that does have to sing from the whole cast, which is represented by the fraction 1.
First, let's calculate the fraction of the cast that has to sing. We are given that three eighths (3/8) of the cast has to sing.
To get the fraction that does not have to sing, we subtract the fraction that does have to sing from 1:
1 - 3/8
To subtract fractions, we need to have a common denominator. In this case, the denominator of both fractions is 8, so we can subtract them directly:
1 - 3/8 = 8/8 - 3/8
Subtracting the numerators:
8/8 - 3/8 = (8 - 3)/8 = 5/8
Therefore, 5/8 of the cast does not have to sing.
the whole cast is 8 eights, right?
So, what is 8/8 - 3/8 ?
What is 8 of anything minus three of them?