Xiao Ming collected 77 stamps, and Xiao Li collected 7 less stamps than Xiao Ming (6/7). How many stamps did Xiao Li collect?
小明收集了77张邮票，小丽收集的比小明的(6/7)少7张，小丽收集了多少张．
<gadget id="calculator">6 / 7</gadget>
<output>6/7 = around 0.857143</output>

<gadget id="calculator">77 * (6/7)</gadget>
<output>66</output>

<gadget id="calculator">66 - 7</gadget>
<output>59</output>

<result>59</result>