((135*271+136)/(136*271-135))=how much.
((135*271+136)/(136*271-135))=多少．
<gadget id="calculator">135 * 271</gadget>
<output>36_585</output>

<gadget id="calculator">36_585 + 136</gadget>
<output>36_721</output>

<gadget id="calculator">136 * 271</gadget>
<output>36_856</output>

<gadget id="calculator">36_856 - 135</gadget>
<output>36_721</output>

<gadget id="calculator">36_721 / 36_721</gadget>
<output>1</output>

<result>1</result>