When a fraction is divided by (2/3), (5/9), (7/15), the quotients obtained are all integers. What is the minimum score?
一个分数分别除以(2/3)，(5/9)，(7/15)，所得的商都是整数．这个分数最小是几？
<gadget id="calculator">2 * 5 * 7</gadget>
<output>70</output>

<gadget id="calculator">70 / 3</gadget>
<output>70/3 = around 23.333333</output>

<result>70/3 = around 23.333333</result>