The flour extraction rate of a kind of wheat is 75%, and 67.5 tons of flour needs to be ground. How many tons of this kind of wheat are needed?
一种小麦出粉率为75%，要磨67.5吨面粉，需要这样的小麦多少吨？
<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">67.5 / (3/4)</gadget>
<output>90</output>

<result>90</result>