If the price of three composition texts is equal to the price of four math exercise books, and the price of four composition texts is 0.56 yuan more than that of three math exercise books, then what is the price of each composition text?
如果三本作文本的价钱等于四本数学练习本的价钱，而买四本作文本比买三本数学练习本多付0.56元，那么，每本作文本的价钱是多少元．
<gadget id="calculator">3 + 4</gadget>
<output>7</output>

<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">0.56 * (3/7)</gadget>
<output>0.24</output>

<gadget id="calculator">0.56 - 0.24</gadget>
<output>0.32</output>

<result>0.32</result>