In the 400-meter test, there are more students who have reached the standard than those who have not (1/2), and how many students have passed the test?
400米测试，达标的同学比未达标的同学多(1/2)，达标的同学占测试人数的多少
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 + (1/2)</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">1 + 1 + (1/2)</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">(3/2) / (5/2)</gadget>
<output>3/5 = around 0.6</output>

<result>3/5 = around 0.6</result>