A basket of fish weighs 135 kilograms. After selling half of it, sell half of it again, and then sell the remaining fish (4/7). At this time, the weight of the remaining fish in the basket is 37 kilograms. How many kilograms? (column solution)
一筐鱼连筐得135千克，卖出一半后，再卖出一半后，再卖出剩下鱼的(4/7)，这时剩下的鱼连筐重37千克，原来这筐鱼重多少千克？(列式解答)
<gadget id="calculator">135 - 37</gadget>
<output>98</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 - (1/2)</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/2) * (1/2)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/2) + (1/4)</gadget>
<output>3/4 = around 0.75</output>

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

<gadget id="calculator">4 / 7</gadget>
<output>4/7 = around 0.571429</output>

<gadget id="calculator">(1/4) * (4/7)</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">(3/4) + (1/7)</gadget>
<output>25/28 = around 0.892857</output>

<gadget id="calculator">98 / (25/28)</gadget>
<output>2_744/25 = around 109.76</output>

<result>2_744/25 = around 109.76</result>