Xiao Ming bought 50 movie tickets of two kinds, A and B, for the class. A ticket was 0.5 yuan each, and B ticket was 0.35 yuan each. The total cost was 19.6 yuan. What fraction of the money?
小明给班里买了甲、乙两种电影票共50张，甲票每张0.5元，乙票每张0.35元，共花了19.6元，问：买甲票花的钱是买乙票花的钱的几分之几？
<gadget id="calculator">0.5 * 50</gadget>
<output>25</output>

<gadget id="calculator">25 - 19.6</gadget>
<output>5.4</output>

<gadget id="calculator">0.5 - 0.35</gadget>
<output>0.15</output>

<gadget id="calculator">5.4 / 0.15</gadget>
<output>36</output>

<gadget id="calculator">50 - 36</gadget>
<output>14</output>

<gadget id="calculator">0.5 * 14</gadget>
<output>7</output>

<gadget id="calculator">0.35 * 36</gadget>
<output>12.6</output>

<gadget id="calculator">7 / 12.6</gadget>
<output>0.555556</output>

<result>0.555556</result>