If 2a=7b (a, b are not 0), then ((a)/(b))=((())/(())).
如果2a=7b(a、b不为0)，那么((a)/(b))=((())/(()))．
<gadget id="calculator">7 / 2</gadget>
<output>7/2 = around 3.5</output>

<result>7/2 = around 3.5</result>