Two granaries, A and B, store 84 tons of grain in total. If we transport 1/15 of the grain stored in B to A, then the two granaries are exactly equal. How many tons of grain did B store?
甲乙两个粮仓共存粮84吨，如果把乙仓存粮的(1/15)运给甲仓，那么两仓的存粮正好相等，原来乙仓存粮多少吨？
<gadget id="calculator">1 / 15</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">1 - (1/15) - (1/15)</gadget>
<output>13/15 = around 0.866667</output>

<gadget id="calculator">1 + (13/15)</gadget>
<output>28/15 = around 1.866667</output>

<gadget id="calculator">84 / (28/15)</gadget>
<output>45</output>

<result>45</result>