((1/2)+(1992/1993)+(1993/1994))*((1992/1993)+(1993/1994)+(1994/1995))-((1992/1993)+(1993/ 1994)+(1994/1995)+(1/2))*((1992/1993)+(1993/1994))=how much.
((1/2)+(1992/1993)+(1993/1994))*((1992/1993)+(1993/1994)+(1994/1995))-((1992/1993)+(1993/1994)+(1994/1995)+(1/2))*((1992/1993)+(1993/1994))=多少．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1_992 / 1_993</gadget>
<output>1_992/1_993 = around 0.999498</output>

<gadget id="calculator">1_993 / 1_994</gadget>
<output>1_993/1_994 = around 0.999498</output>

<gadget id="calculator">(1/2) + (1_992/1_993) + (1_993/1_994)</gadget>
<output>4_965_559/1_987_021 = around 2.498997</output>

<gadget id="calculator">1_994 / 1_995</gadget>
<output>1_994/1_995 = around 0.999499</output>

<gadget id="calculator">(1_992/1_993) + (1_993/1_994) + (1_994/1_995)</gadget>
<output>23_772_713_263/7_928_213_790 = around 2.998495</output>

<gadget id="calculator">(4_965_559/1_987_021) * (23_772_713_263/7_928_213_790)</gadget>
<output>118_044_810_297_509_017/15_753_527_293_219_590 = around 7.49323</output>

<gadget id="calculator">(1_992/1_993) + (1_993/1_994) + (1_994/1_995) + (1/2)</gadget>
<output>13_868_410_079/3_964_106_895 = around 3.498495</output>

<gadget id="calculator">(1_992/1_993) + (1_993/1_994)</gadget>
<output>7_944_097/3_974_042 = around 1.998997</output>

<gadget id="calculator">(13_868_410_079/3_964_106_895) * (7_944_097/3_974_042)</gadget>
<output>15_738_856_414_764_809/2_250_503_899_031_370 = around 6.993481</output>

<gadget id="calculator">(118_044_810_297_509_017/15_753_527_293_219_590) - (15_738_856_414_764_809/2_250_503_899_031_370)</gadget>
<output>997/1_995 = around 0.499749</output>

<result>997/1_995 = around 0.499749</result>