The fruit company shipped watermelons (5/2) tons, pears were watermelons (1/5), and apples were less than pears (2/5). How many tons less apples are shipped than pears?
果品公司运来西瓜(5/2)吨，运来的梨是西瓜的(1/5)，运来的苹果比梨少(2/5)．运来的苹果比梨少多少吨？
<gadget id="calculator">5 / 2</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

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

<gadget id="calculator">(5/2) * (1/5) * (2/5)</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>