Define a new operation: We stipulate that "*" is an operation symbol, and its operation rules are: a*b=a*ba/b Please use the above rules to calculate: 1.2*6=how much.
定义新运算：我们规定"*"是一种运算符号，它的运算规则是：a*b=a*b-a/b请你用上面的规则计算：1.2*6=多少．
<gadget id="calculator">1.2 * 6</gadget>
<output>7.2</output>

<gadget id="calculator">1.2 / 6</gadget>
<output>0.2</output>

<gadget id="calculator">7.2 - 0.2</gadget>
<output>7</output>

<result>7</result>