Calculation: 1-(5/4)+(7/12)-(9/20)+(11/30)+(15/56)=how much.
计算：1-(5/4)+(7/12)-(9/20)+(11/30)+(15/56)=多少．
<gadget id="calculator">5 / 4</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">1 - (5/4)</gadget>
<output>-1/4 = around -0.25</output>

<gadget id="calculator">7 / 12</gadget>
<output>7/12 = around 0.583333</output>

<gadget id="calculator">9 / 20</gadget>
<output>9/20 = around 0.45</output>

<gadget id="calculator">(7/12) - (9/20)</gadget>
<output>2/15 = around 0.133333</output>

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

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

<gadget id="calculator">(-1/4) + (2/15) + (11/30) + (15/56)</gadget>
<output>29/56 = around 0.517857</output>

<result>29/56 = around 0.517857</result>