The sixth grade made 42 small colored flags, and the fifth grade made less (2/7) than the sixth grade. How many small colored flags did the fifth grade make?
六年级做了42面小彩旗，五年级做的比六年级少(2/7)．五年级做了多少面小彩旗？
<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">1 - (2/7)</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">42 * (5/7)</gadget>
<output>30</output>

<result>30</result>