Zhang Hong bought 4 pears for 3.8 yuan, and Li Li bought 5 apples for 4 yuan. What math questions can you ask? And answer.
张红买4个梨花了3.8元钱，李力买5个苹果花了4元钱．你能提出哪些数学问题？并解答．
<gadget id="calculator">3.8 / 4</gadget>
<output>0.95</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">0.95 - (4/5)</gadget>
<output>0.15</output>

<result>0.15</result>