A steel wire, cut off the full length (1/3) for the first time, and cut off the full length (3/8) for the second time, how much of the full length is left.
一根钢丝，第一次剪下全长的(1/3)，第二次剪下全长的(3/8)，还剩下全长的多少．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1 - (1/3) - (3/8)</gadget>
<output>7/24 = around 0.291667</output>

<result>7/24 = around 0.291667</result>