A threshing machine (3/4) hours threshing (2/5) tons, how many hours does it take to thresh 1 ton.
一台脱粒机(3/4)小时脱粒(2/5)吨，脱粒1吨要用多少小时．
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(3/4) / (2/5)</gadget>
<output>15/8 = around 1.875</output>

<result>15/8 = around 1.875</result>