(7/18) of a number is 5, what is (7/9) of this number
一个数的(7/18)是5，这个数的(7/9)是多少
<gadget id="calculator">7 / 18</gadget>
<output>7/18 = around 0.388889</output>

<gadget id="calculator">5 / (7/18)</gadget>
<output>90/7 = around 12.857143</output>

<gadget id="calculator">7 / 9</gadget>
<output>7/9 = around 0.777778</output>

<gadget id="calculator">(90/7) * (7/9)</gadget>
<output>10</output>

<result>10</result>