It is now 9:20, how many minutes later, the hour and minute hands will coincide for the first time.
现在是9点20分，再过多少分，时针与分针将第一次重合．
<gadget id="calculator">5 / 60</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">(1/12) * 20</gadget>
<output>5/3 = around 1.666667</output>

<gadget id="calculator">25 + (5/3)</gadget>
<output>80/3 = around 26.666667</output>

<gadget id="calculator">1 - (1/12)</gadget>
<output>11/12 = around 0.916667</output>

<gadget id="calculator">(80/3) / (11/12)</gadget>
<output>320/11 = around 29.090909</output>

<result>320/11 = around 29.090909</result>