A rectangle is (9/10) meters long and (1/5) meters longer than it is wide. What is the perimeter of this rectangle in meters?
一个长方形长(9/10)米，比宽长(1/5)米．这个长方形的周长是多少米？
<gadget id="calculator">9 / 10</gadget>
<output>9/10 = around 0.9</output>

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

<gadget id="calculator">(9/10) - (1/5)</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">(9/10) + (7/10)</gadget>
<output>8/5 = around 1.6</output>

<gadget id="calculator">(8/5) * 2</gadget>
<output>16/5 = around 3.2</output>

<result>16/5 = around 3.2</result>