Given that (2/3) is (5/8) of a number, what is the number?
已知(2/3)是一个数的(5/8)，则这个数是多少．
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(5/8) / (2/3)</gadget>
<output>15/16 = around 0.9375</output>

<result>15/16 = around 0.9375</result>