A steel pipe is (5/7) meters long. Dad saw the steel pipe 3 times. Each section after sawing is the same length. The length of each section is ((())/(())) of the original steel pipe. How many meters is each section?
一根钢管长(5/7)米，爸爸把这根钢管锯了3次，锯下的每段同样长，每段长是原来这根钢管的((())/(()))，每段长多少米．
<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">(5/7) / 4</gadget>
<output>5/28 = around 0.178571</output>

<result>5/28 = around 0.178571</result>