((13/42)-(11/30)+(9/20)-(7/12)+(5/6)-(1/2))/(1/56)*251.
((13/42)-(11/30)+(9/20)-(7/12)+(5/6)-(1/2))/(1/56)*251．
<gadget id="calculator">13 / 42</gadget>
<output>13/42 = around 0.309524</output>

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

<gadget id="calculator">(13/42) - (11/30)</gadget>
<output>-2/35 = around -0.057143</output>

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

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

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

<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(5/6) - (1/2)</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(-2/35) + (-2/15) + (1/3)</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">1 / 56</gadget>
<output>1/56 = around 0.017857</output>

<gadget id="calculator">(1/7) / (1/56)</gadget>
<output>8</output>

<gadget id="calculator">8 * 251</gadget>
<output>2_008</output>

<result>2_008</result>