A piece of cloth is 10 meters long, cut off 10% of it, and then cut off (1/10) meters, how many meters are left.
一块布全长10米，剪去它的10%，再剪去(1/10)米，还剩多少米．
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">10 * (1/10)</gadget>
<output>1</output>

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">10 - 1 - (1/10)</gadget>
<output>89/10 = around 8.9</output>

<result>89/10 = around 8.9</result>