Two ropes A and B are 9 meters and 6 meters long respectively. After cutting off a section of the same length, the length of root B is (3/5) that of root A. How many meters are cut off from root A?
甲乙两根绳子分别长9米和6米，各剪去同样长的一段后，乙根的长是甲根的(3/5)，甲根剪去多少米．
<gadget id="calculator">9 - 6</gadget>
<output>3</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">3 / (2/5)</gadget>
<output>15/2 = around 7.5</output>

<gadget id="calculator">9 - (15/2)</gadget>
<output>3/2 = around 1.5</output>

<result>3/2 = around 1.5</result>