60% of a number is 35 (12/7), find this number.
一个数的60%是35的(12/7)，求这个数．
<gadget id="calculator">12 / 7</gadget>
<output>12/7 = around 1.714286</output>

<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(12/7) / (3/5)</gadget>
<output>20/7 = around 2.857143</output>

<gadget id="calculator">35 * (20/7)</gadget>
<output>100</output>

<result>100</result>