Of the 75 tons of goods, 45 tons have been transported away, and how much is left to be transported.
75吨货物，运走了45吨，还剩下多少没有运走．
<gadget id="calculator">45 / 75</gadget>
<output>3/5 = around 0.6</output>

<result>3/5 = around 0.6</result>