If 80 kg of wheat can be used to grind 72 kg of flour, what is the flour extraction rate of the wheat?
用80千克的小麦可磨出72千克的面粉，小麦的出粉率是多少．
<gadget id="calculator">72 / 80</gadget>
<output>9/10 = around 0.9</output>

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

<gadget id="calculator">(9/10) * 1</gadget>
<output>9/10 = around 0.9</output>

<result>9/10 = around 0.9</result>