If 400 kg of wheat is used to grind 350 kg of flour, what is the flour extraction rate of the wheat?
用400千克小麦磨出350千克面粉，小麦的出粉率是多少？
<gadget id="calculator">350 / 400</gadget>
<output>7/8 = around 0.875</output>

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

<gadget id="calculator">(7/8) * 1</gadget>
<output>7/8 = around 0.875</output>

<result>7/8 = around 0.875</result>