A barrel of gasoline is poured out (3/8), and there is still 40 kilograms left. How many kilograms does this barrel of gasoline weigh?
一桶汽油倒出(3/8)，还剩下40千克，这桶汽油重多少千克？
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1 - (3/8)</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">40 / (5/8)</gadget>
<output>64</output>

<result>64</result>