A bottle of gasoline is poured out for the first time (1/4), and then poured out for the second time (3/8), and there are 12 kilograms left. How many kilograms are in this bottle of gasoline?
一瓶汽油第一次倒出(1/4)，第二次倒出(3/8)，还剩12千克，这瓶汽油有多少千克？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

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

<gadget id="calculator">1 - (1/4) - (3/8)</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">12 / (3/8)</gadget>
<output>32</output>

<result>32</result>