A fraction is approximated twice with 3, once with 2, and once with 5, and finally becomes a minimal fraction (2/3). Please calculate, what is the original fraction?
一个分数用3约了两次，再用2约了一次，还用5约一次，最后成了一个最简分数是(2/3)请你推算一下，原来的分数是多少？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<result>2/3 = around 0.666667</result>