There are several goldfishes in tanks A and B, among which tank A accounts for 60%, and 12 goldfishes are taken out from tank B and put into tank A. At this time, tank B accounts for 25% of the total. How many goldfish were there in Tank A?
甲、乙两缸共有金鱼若干尾，其中甲缸占60%，从乙缸取出12尾放入甲缸，这时乙缸金鱼占总数的25%．甲缸原来有金鱼多少尾？
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">25 / 100</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>

<gadget id="calculator">80 * (3/5)</gadget>
<output>48</output>

<result>48</result>