(5/7)*(3/8)=how much.
(5/7)*(3/8)=多少．
<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

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

<gadget id="calculator">(5/7) * (3/8)</gadget>
<output>15/56 = around 0.267857</output>

<result>15/56 = around 0.267857</result>