If 50kg of wheat is ground to produce 42kg of flour, what is the flour extraction rate of the wheat?
50㎏小麦磨出面粉42㎏，小麦的出粉率是多少．
<gadget id="calculator">42 / 50</gadget>
<output>21/25 = around 0.84</output>

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

<gadget id="calculator">(21/25) * 1</gadget>
<output>21/25 = around 0.84</output>

<result>21/25 = around 0.84</result>