If A belongs to B (1/5), and B belongs to C (1/5), then how much does A belong to C?
甲是乙的(1/5)，乙是丙的(1/5)，则甲是丙的多少．
<gadget id="calculator">1 / 25</gadget>
<output>1/25 = around 0.04</output>

<result>1/25 = around 0.04</result>