Two granaries, A and B, after transporting part of the granary from A, there is still (5/8), which is transported from B (3/7), and the total amount of grain transported from the two granaries is less than the original A (2 /5), warehouse B originally had 63 tons of grain, how many tons of grain did A warehouse have?
甲乙两个粮仓，从甲仓中运走一部分后，还剩下(5/8)，从乙仓中运走(3/7)，两仓运走粮食的总量比原来甲仓少(2/5)，乙仓原有粮食63吨，甲仓原有粮食多少吨？
<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

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

<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">1 - (5/8)</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1 - (2/5) - (3/8)</gadget>
<output>9/40 = around 0.225</output>

<gadget id="calculator">(3/7) / (9/40)</gadget>
<output>40/21 = around 1.904762</output>

<gadget id="calculator">63 * (40/21)</gadget>
<output>120</output>

<result>120</result>