Two tanks of A and B share a number of goldfish, of which tank A accounts for 60%. Take 12 fish from tank B and put them into tank A. At this time, the goldfish in tank B accounts for 1/4 of the total. How many goldfish are there in the two tanks of A and B? tail?
甲乙两个鱼缸共有金鱼若干尾，其中甲鱼缸占60%，从乙鱼缸中取出12尾放人甲鱼缸，这时乙鱼缸的金鱼占总数的(1/4)，甲乙两个鱼缸共有金鱼多少尾？
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (3/5) - (1/4)</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">12 / (3/20)</gadget>
<output>80</output>

<result>80</result>