How many of (2/17), (3/9), (5/16) are not the simplest fractions.
(2/17)、(3/9)、(5/16)中不是最简分数的是多少．
<gadget id="calculator">9 / 3</gadget>
<output>3</output>

<gadget id="calculator">3 / 1</gadget>
<output>3</output>

<gadget id="calculator">3 / 9</gadget>
<output>1/3 = around 0.333333</output>

<result>1/3 = around 0.333333</result>