There is a string of fractions: (1/1), (1/2), (2/2), (1/3), (2/3), (3/3), (1/4), (2/4 ), (3/4), (4/4), ..., (1/12) is the number.
有一串分数：(1/1)，(1/2)，(2/2)，(1/3)，(2/3)，(3/3)，(1/4)，(2/4)，(3/4)，(4/4)，…，(1/12)是第多少个数．
<gadget id="calculator">12 / 1</gadget>
<output>12</output>

<gadget id="calculator">12 * 5</gadget>
<output>60</output>

<gadget id="calculator">60 + 6 + 1</gadget>
<output>67</output>

<result>67</result>