What is the quotient of the product of (6/7) and (7/15) divided by 30?
(6/7)与(7/15)的积除以30，商是多少？
<gadget id="calculator">6 / 7</gadget>
<output>6/7 = around 0.857143</output>

<gadget id="calculator">7 / 15</gadget>
<output>7/15 = around 0.466667</output>

<gadget id="calculator">(7/15) / 30</gadget>
<output>7/450 = around 0.015556</output>

<gadget id="calculator">(6/7) * (7/450)</gadget>
<output>1/75 = around 0.013333</output>

<result>1/75 = around 0.013333</result>