Given that a and b are reciprocals of each other, then ((a)/5)*((b)/2)=how many.
已知a和b互为倒数，则((a)/5)*((b)/2)=多少．
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<result>1/10 = around 0.1</result>