(1/5) of number A is equal to (1/8) of number B, how much more number B is than number A.
甲数的(1/5)等于乙数的(1/8)，乙数比甲数多多少．
<gadget id="calculator">8 - 5</gadget>
<output>3</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<result>3/5 = around 0.6</result>