When two numbers are multiplied, the product is 300. If one factor is multiplied by 4 and the other factor is divided by 5, what is the product?
两个数相乘，积是300．如果一个因数乘4，另一个因数除以5，那么积是多少？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">300 * (4/5)</gadget>
<output>240</output>

<result>240</result>