(8-(17/35)*5)+(7-(17/35)*6)+(6-(17/35)*7)+(5-(17/35)*8)+(4 -(17/35)*9).
(8-(17/35)*5)+(7-(17/35)*6)+(6-(17/35)*7)+(5-(17/35)*8)+(4-(17/35)*9)．
<gadget id="calculator">17 / 35</gadget>
<output>17/35 = around 0.485714</output>

<gadget id="calculator">(17/35) * 5</gadget>
<output>17/7 = around 2.428571</output>

<gadget id="calculator">8 - (17/7)</gadget>
<output>39/7 = around 5.571429</output>

<gadget id="calculator">(17/35) * 6</gadget>
<output>102/35 = around 2.914286</output>

<gadget id="calculator">7 - (102/35)</gadget>
<output>143/35 = around 4.085714</output>

<gadget id="calculator">(17/35) * 7</gadget>
<output>17/5 = around 3.4</output>

<gadget id="calculator">6 - (17/5)</gadget>
<output>13/5 = around 2.6</output>

<gadget id="calculator">(17/35) * 8</gadget>
<output>136/35 = around 3.885714</output>

<gadget id="calculator">5 - (136/35)</gadget>
<output>39/35 = around 1.114286</output>

<gadget id="calculator">(17/35) * 9</gadget>
<output>153/35 = around 4.371429</output>

<gadget id="calculator">4 - (153/35)</gadget>
<output>-13/35 = around -0.371429</output>

<gadget id="calculator">(39/7) + (143/35) + (13/5) + (39/35) + (-13/35)</gadget>
<output>13</output>

<result>13</result>