A rope is (5/8) meters long, if (1/3) is used up, how many meters are left?
一条绳子长(5/8)米，用去(1/3)，还剩多少米？
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

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

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(5/8) * (2/3)</gadget>
<output>5/12 = around 0.416667</output>

<result>5/12 = around 0.416667</result>