A rectangle has a perimeter of (11/5) meters, its known length is (5/8) meters, and how many meters is its width?
一个长方形，周长是(11/5)米，已知长是(5/8)米，宽是多少米？
<gadget id="calculator">11 / 5</gadget>
<output>11/5 = around 2.2</output>

<gadget id="calculator">(11/5) / 2</gadget>
<output>11/10 = around 1.1</output>

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

<gadget id="calculator">(11/10) - (5/8)</gadget>
<output>19/40 = around 0.475</output>

<result>19/40 = around 0.475</result>