There are 400kg pears in the fruit shop, 40% are sold in the morning, and the rest (5/6) are sold in the afternoon. How many pears are left unsold?
水果店有400kg梨，上午卖出40%，下午卖出剩下的(5/6)，还剩多少梨没卖出？
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">1 - (5/6)</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">400 * (3/5) * (1/6)</gadget>
<output>40</output>

<result>40</result>