60% of a number is 3 less than 12. Find this number?
一个数的60%比12少3，求这个数？
<gadget id="calculator">12 - 3</gadget>
<output>9</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">9 / (3/5)</gadget>
<output>15</output>

<result>15</result>