Cut the (9/10) meter long rope into 3 sections of the same length, each section is 1 meter long
把(9/10)米长的绳子剪成同样长的3段，每段长是1米的多少
<gadget id="calculator">9 / 10</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) / 1</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(9/10) * (1/3)</gadget>
<output>3/10 = around 0.3</output>

<result>3/10 = around 0.3</result>