Calculation: ((9/20)-(11/30)+(13/42)-(15/56)+(17/72))*120-(1/3)/(1/4)
计算：((9/20)-(11/30)+(13/42)-(15/56)+(17/72))*120-(1/3)/(1/4)多少
<gadget id="calculator">9 / 20</gadget>
<output>9/20 = around 0.45</output>

<gadget id="calculator">11 / 30</gadget>
<output>11/30 = around 0.366667</output>

<gadget id="calculator">(9/20) - (11/30)</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">13 / 42</gadget>
<output>13/42 = around 0.309524</output>

<gadget id="calculator">15 / 56</gadget>
<output>15/56 = around 0.267857</output>

<gadget id="calculator">(13/42) - (15/56)</gadget>
<output>1/24 = around 0.041667</output>

<gadget id="calculator">17 / 72</gadget>
<output>17/72 = around 0.236111</output>

<gadget id="calculator">(1/12) + (1/24) + (17/72)</gadget>
<output>13/36 = around 0.361111</output>

<gadget id="calculator">(13/36) * 120</gadget>
<output>130/3 = around 43.333333</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/3) / (1/4)</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">(130/3) - (4/3)</gadget>
<output>42</output>

<result>42</result>