What is the calculation result of 1+2-3*4/5+6-7*8/9
1+2-3*4/5+6-7*8/9的计算结果是多少
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">3 * (4/5)</gadget>
<output>12/5 = around 2.4</output>

<gadget id="calculator">2 - (12/5)</gadget>
<output>-2/5 = around -0.4</output>

<gadget id="calculator">8 / 9</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">7 * (8/9)</gadget>
<output>56/9 = around 6.222222</output>

<gadget id="calculator">6 - (56/9)</gadget>
<output>-2/9 = around -0.222222</output>

<gadget id="calculator">1 + (-2/5) + (-2/9)</gadget>
<output>17/45 = around 0.377778</output>

<result>17/45 = around 0.377778</result>