12.5/3.6-7/9+8.3/3.6=how much.
12.5/3.6-7/9+8.3/3.6=多少．
<gadget id="calculator">12.5 / 3.6</gadget>
<output>3.472222</output>

<gadget id="calculator">7 / 9</gadget>
<output>7/9 = around 0.777778</output>

<gadget id="calculator">3.472222 - (7/9)</gadget>
<output>2.694444</output>

<gadget id="calculator">8.3 / 3.6</gadget>
<output>2.305556</output>

<gadget id="calculator">2.694444 + 2.305556</gadget>
<output>5</output>

<result>5</result>