The product of 25 times 2 is equal to the product of 5 times what.
25乘2的积与5乘多少的积相等．
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">25 * (2/5)</gadget>
<output>10</output>

<result>10</result>