Multiply the fractional part of a number by 4, the number becomes 11.4, and multiply the fractional part by 7, the number becomes 13.2, what is this number?
把一个数的小数部分乘4，这个数就变成11.4，把它的小数部分乘7，这个数就变成13.2，这个数是多少？
<gadget id="calculator">13.2 - 11.4</gadget>
<output>1.8</output>

<gadget id="calculator">7 - 4</gadget>
<output>3</output>

<gadget id="calculator">1.8 / 3</gadget>
<output>0.6</output>

<gadget id="calculator">0.6 * 4</gadget>
<output>2.4</output>

<gadget id="calculator">11.4 - 2.4</gadget>
<output>9</output>

<gadget id="calculator">9 + 0.6</gadget>
<output>9.6</output>

<result>9.6</result>