Xiao Liang is a little sloppy. When calculating the subtraction of decimals, he mistook the subtrahend 1.2 as 12, and the result was 15.7. Please help him do the math. What is the correct difference?
小亮有点小马虎，在计算小数减法时，他把减数1.2错看成12，结果得到15.7，请你帮他算一算，正确的差是多少？
<gadget id="calculator">15.7 - 1.2</gadget>
<output>14.5</output>

<gadget id="calculator">12 + 14.5</gadget>
<output>26.5</output>

<result>26.5</result>