A batch of fabric can be used to make 10 pieces of the same jacket, and if it is changed to make trousers, it can be made into 15 pieces of the same trousers. How many suits can this batch of fabric make?
一批布料，可以做同样的上衣10件，如果改做裤子，可做同样的裤子15条．这批布料可做几套衣服？
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 / 15</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">(1/10) + (1/15)</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 / (1/6)</gadget>
<output>6</output>

<result>6</result>