To build a canal (3/5) kilometers long, and (1/4) of it was repaired in three days, how many kilometers are repaired on average per day?
修一条长(3/5)千米的水渠，三天修了它的(1/4)，平均每天修多少千米？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

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

<gadget id="calculator">(1/4) / 3</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">(3/5) * (1/12)</gadget>
<output>1/20 = around 0.05</output>

<result>1/20 = around 0.05</result>