Among the three numbers (7/8), (2/15) and (6/18), how many can be transformed into finite decimals.
在(7/8)、(2/15)、(6/18)这三个数中，多少能化成有限小数．
<gadget id="calculator">7 / 8</gadget>
<output>7/8 = around 0.875</output>

<result>7/8 = around 0.875</result>