The grain warehouse transported away (1/5) of the original grain on the first day, and transported 48 tons in the second day. At this time, the grain in the warehouse is the original grain (22/25). How many tons of original grain are there in the warehouse?
粮食仓库第一天运走了原有粮食总数的(1/5)，第二天又运进了48吨，这时仓库里的粮食是原有粮食的(22/25)．仓库原有粮食多少吨？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">22 / 25</gadget>
<output>22/25 = around 0.88</output>

<gadget id="calculator">(22/25) - 1</gadget>
<output>-3/25 = around -0.12</output>

<gadget id="calculator">(1/5) + (-3/25)</gadget>
<output>2/25 = around 0.08</output>

<gadget id="calculator">48 / (2/25)</gadget>
<output>600</output>

<result>600</result>