(1/4) of a number is 60, what is (3/8) of this number.
一个数的(1/4)是60，这个数的(3/8)是多少．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">60 / (1/4)</gadget>
<output>240</output>

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">240 * (3/8)</gadget>
<output>90</output>

<result>90</result>