After counting (1/5) of A to B, A and B are equal, and A has more than B.
把甲的(1/5)给乙数后，甲、乙两数相等，甲比乙多甲的多少．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/5) * 2</gadget>
<output>2/5 = around 0.4</output>

<result>2/5 = around 0.4</result>