Some candies, eat (3/7) first, and then eat the rest (3/4). At this time, the amount eaten is 40 more than the rest. How many pieces of these candies are there?
一些糖，先吃掉(3/7)，再吃掉剩下的(3/4)，这时吃掉的比剩下的多40块，这些糖原来有多少块？
<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">1 - (3/7)</gadget>
<output>4/7 = around 0.571429</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(4/7) * (3/4)</gadget>
<output>3/7 = around 0.428571</output>

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

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

<gadget id="calculator">(3/7) - (1/7)</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">(3/7) + (2/7)</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">40 / (5/7)</gadget>
<output>56</output>

<result>56</result>