To plow a piece of land, the amount of plowing in the morning is 60% of that in the afternoon, and the amount of plowing in the afternoon is the amount of plowing in the whole day.
耕一块地，上午耕的是下午的60%，下午耕的是全天耕的多少．
<gadget id="calculator">5 + 3</gadget>
<output>8</output>

<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<result>5/8 = around 0.625</result>