SOLUTION: which of the following is a rational number? a.√2 b.√pi(3.14) c.√7 d.√5/√25 e.√64/√49 my act aNSWER key has e, i'm not

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Question 549983: which of the following is a rational number?
a.√2
b.√pi(3.14)
c.√7
d.√5/√25
e.√64/√49
my act aNSWER key has e, i'm not sure if its right though and how it is a rational number. so an explanation would be much appreciated.

Answer by scott8148(6628)   (Show Source): You can put this solution on YOUR website!
√64 and √49 are both integer values (±8 and ±7), so the fraction is rational (the ratio of two integers)
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