The number A is divided by the number B, the quotient is 0.9, the number A is enlarged by 3 times, and the number B is reduced by 3 times, what is the quotient.
甲数除以乙数，商是0.9，甲数扩大3倍，乙数缩小3倍，商是多少．
<gadget id="calculator">0.9 * 3 * 3</gadget>
<output>8.1</output>

<result>8.1</result>