To build a canal, it has been repaired (5/7), and there is still 160m left to be repaired. How many meters is the total length of this canal?
修一条水渠，已经修了它的(5/7)，还剩下160m没有修，这条水渠全长多少米？
<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">1 - (5/7)</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">160 / (2/7)</gadget>
<output>560</output>

<result>560</result>