Uncle Wang uses 0.4 tons of wheat to grind 240 kg of flour. What is the flour extraction rate of wheat?
王大爷用0.4吨小麦磨出面粉240千克，小麦的出粉率是多少．
<gadget id="calculator">0.4 * 1_000</gadget>
<output>400</output>

<gadget id="calculator">240 / 400</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">100 / 100</gadget>
<output>1</output>

<gadget id="calculator">(3/5) * 1</gadget>
<output>3/5 = around 0.6</output>

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