Calculation: ((1(2/3)+2(3/4)+3(4/5)+…+1994(1995/1996)+1995(1996/1997))/(3(1/3)+ 5(2/4)+7(3/5)+...+3989(1994/1996)+3991(1995/1997)))= how much.
计算：((1(2/3)+2(3/4)+3(4/5)+…+1994(1995/1996)+1995(1996/1997))/(3(1/3)+5(2/4)+7(3/5)+…+3989(1994/1996)+3991(1995/1997)))=多少．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">2 - (1/3)</gadget>
<output>5/3 = around 1.666667</output>

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

<gadget id="calculator">3 - (1/4)</gadget>
<output>11/4 = around 2.75</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">4 - (1/5)</gadget>
<output>19/5 = around 3.8</output>

<gadget id="calculator">1 / 1_996</gadget>
<output>1/1_996 = around 0.000501</output>

<gadget id="calculator">1_995 - (1/1_996)</gadget>
<output>3_982_019/1_996 = around 1_994.999499</output>

<gadget id="calculator">1 / 1_997</gadget>
<output>1/1_997 = around 0.000501</output>

<gadget id="calculator">1_996 - (1/1_997)</gadget>
<output>3_986_011/1_997 = around 1_995.999499</output>

<gadget id="calculator">(5/3) + (11/4) + (19/5) + (3_982_019/1_996) + (3_986_011/1_997)</gadget>
<output>59_778_456_116/14_947_545 = around 3_999.215665</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">4 - (2/3)</gadget>
<output>10/3 = around 3.333333</output>

<gadget id="calculator">2 / 4</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">6 - (1/2)</gadget>
<output>11/2 = around 5.5</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">8 - (2/5)</gadget>
<output>38/5 = around 7.6</output>

<gadget id="calculator">2 / 1_996</gadget>
<output>1/998 = around 0.001002</output>

<gadget id="calculator">3_990 - (1/998)</gadget>
<output>3_982_019/998 = around 3_989.998998</output>

<gadget id="calculator">2 / 1_997</gadget>
<output>2/1_997 = around 0.001002</output>

<gadget id="calculator">3_992 - (2/1_997)</gadget>
<output>7_972_022/1_997 = around 3_991.998998</output>

<gadget id="calculator">(10/3) + (11/2) + (38/5) + (3_982_019/998) + (7_972_022/1_997)</gadget>
<output>119_556_912_232/14_947_545 = around 7_998.43133</output>

<gadget id="calculator">(59_778_456_116/14_947_545) / (119_556_912_232/14_947_545)</gadget>
<output>1/2 = around 0.5</output>

<result>1/2 = around 0.5</result>