"Wangjia" fruit supermarket shipped in a batch of pears, sold (1/6) of the total pears on the first day, sold the rest (2/5) on the second day, and sold (1/6) of the total pears on the third day 1/4), there are 140 kg left. How many pears did "Wangjia" Fruit Supermarket transport in total?
"旺佳"水果超市运进一批梨，第一天卖出梨总量的(1/6)，第二天卖出余下的(2/5)，第三天卖出梨总量的(1/4)后，还剩下140千克．"旺佳"水果超市共运进多少梨？
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 - (1/6)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(5/6) * (2/5)</gadget>
<output>1/3 = around 0.333333</output>

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

<gadget id="calculator">1 - (1/6) - (1/3) - (1/4)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">140 / (1/4)</gadget>
<output>560</output>

<result>560</result>