When calculating 3.6/(1.2+0.5)*5, what should be calculated first according to the order of operations.
计算3.6/(1.2+0.5)*5时，如果按运算顺序应先算多少．
<gadget id="calculator">1.2 + 0.5</gadget>
<output>1.7</output>

<result>1.7</result>