Teacher Zhang is a philatelist. He has collected 240 Chinese stamps, and the foreign stamps he collected are less than Chinese stamps (1/8). How many foreign stamps have you collected?
张老师是集邮爱好者，他收集了240张中国邮票，收集的外国邮票比中国邮票少(1/8)．收集的外国邮票有多少张？
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 - (1/8)</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">240 * (7/8)</gadget>
<output>210</output>

<result>210</result>