What is the quotient of the product of 1.8 and 2.5 divided by 0.9?
1.8与2.5的积除以0.9，商是多少？
<gadget id="calculator">2.5 / 0.9</gadget>
<output>2.777778</output>

<gadget id="calculator">1.8 * 2.777778</gadget>
<output>5</output>

<result>5</result>