Divide a fraction by (5/14), (7/8) and 1 (1/20) respectively, the quotient obtained is an integer, what is the smallest fraction.
用(5/14)、(7/8)和1(1/20)分别去除某分数，所得的商是整数，这个分数最小是多少．
<gadget id="calculator">3 * 7 * 5</gadget>
<output>105</output>

<gadget id="calculator">105 / 2</gadget>
<output>105/2 = around 52.5</output>

<result>105/2 = around 52.5</result>