To build a canal (7/8) kilometers long, the engineering team repaired the full length (3/4) in 4 days, how many kilometers per day on average?
修一条长(7/8)千米的水渠，工程队4天修了全长的(3/4)，平均每天修多少千米？
<gadget id="calculator">7 / 8</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(3/4) / 4</gadget>
<output>3/16 = around 0.1875</output>

<gadget id="calculator">(7/8) * (3/16)</gadget>
<output>21/128 = around 0.164062</output>

<result>21/128 = around 0.164062</result>