An engineering team planned to build a canal of (8/9) km long, and (1/4) of it was repaired in 3 days, how many km was repaired per day on average.
某工程队计划修一条长(8/9)km的水渠，3天修了它的(1/4)，平均每天修多少km．
<gadget id="calculator">8 / 9</gadget>
<output>8/9 = around 0.888889</output>

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

<gadget id="calculator">3 / (1/4)</gadget>
<output>12</output>

<gadget id="calculator">(8/9) / 12</gadget>
<output>2/27 = around 0.074074</output>

<result>2/27 = around 0.074074</result>