For any integer k greater than 1, the symbol k* denotes the product of all the fractions of the form ~$\frac{1}{t}$~ , where t is an integer between 1 and k, inclusive. What is the value of ~$\frac{5^{*}}{4^{*}}$~ ?
5
~$\frac{5}{4}$~
~$\frac{4}{5}$~
~$\frac{1}{4}$~
~$\frac{1}{5}$~
integer between 1 and k 包含1 和k
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