A number (5/7) is 60, what is this number.
一个数的(5/7)是60，这个数是多少．
<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">60 / (5/7)</gadget>
<output>84</output>

<result>84</result>