Pour 500ml of water into paper cups of the same size, just filling 2 cups. How many liters of water are needed to fill 8 cups?
将500毫升的水倒入同样大小的纸杯中，刚好倒满2杯．如果要倒满8杯，需要多少升水．
<gadget id="calculator">500 / 2</gadget>
<output>250</output>

<gadget id="calculator">8 / 1_000</gadget>
<output>1/125 = around 0.008</output>

<gadget id="calculator">250 * (1/125)</gadget>
<output>2</output>

<result>2</result>