Calculation: ((4/5)+1.2)*15=how much.
计算：((4/5)+1.2)*15=多少．
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(4/5) + 1.2</gadget>
<output>2</output>

<gadget id="calculator">2 * 15</gadget>
<output>30</output>

<result>30</result>