If a tractor plows (15/8) hectares in 45 minutes, how many hectares does it plow in 1 hour?
一种拖拉机45分钟耕地(15/8)公顷，1小时耕地多少公顷．
<gadget id="calculator">15 / 8</gadget>
<output>15/8 = around 1.875</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(15/8) / (3/4)</gadget>
<output>5/2 = around 2.5</output>

<result>5/2 = around 2.5</result>