Central Primary School used 48 tons of water in October, saving (1/9) compared to the original plan. How many tons of water was saved in October?
中心小学十月份用水48吨，比原计划节约(1/9)．十月份节约用水多少吨？
<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">1 - (1/9)</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">48 / (8/9)</gadget>
<output>54</output>

<gadget id="calculator">54 - 48</gadget>
<output>6</output>

<result>6</result>