A steel pipe is used for (3/4) the first time, and (1/2) meter is used for the second time. The steel pipe is 14 meters shorter than the original one. How long is the steel pipe originally?
一根钢管，第-次用去(3/4)，第二次又用去(1/2)米，钢管比原来短了14米，原来这个钢管长多少米？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">14 - (1/2)</gadget>
<output>27/2 = around 13.5</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(27/2) / (3/4)</gadget>
<output>18</output>

<result>18</result>