A barrel of oil is poured out and its (3/7) is 4 kilograms more. At this time, there are 32 kilograms left in the barrel. How many kilograms does the barrel of oil originally weigh?
一桶油倒出它的(3/7)多4千克，这时桶内还剩32千克，这桶油原来重多少千克．
<gadget id="calculator">32 + 4</gadget>
<output>36</output>

<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">1 - (3/7)</gadget>
<output>4/7 = around 0.571429</output>

<gadget id="calculator">36 / (4/7)</gadget>
<output>63</output>

<result>63</result>