The number A is 60% of the number B, and the number C is 20% of the number A, then the number C is less than the number B.
甲数是乙的60%，丙数是甲数的20%，则丙数比乙数少多少．
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(3/5) * (1/5)</gadget>
<output>3/25 = around 0.12</output>

<gadget id="calculator">1 - (3/25)</gadget>
<output>22/25 = around 0.88</output>

<result>22/25 = around 0.88</result>