Xiaohua saved 35 yuan of pocket money, and he took out (5/7) of it to donate to the children in the earthquake-stricken area. How much did Xiaohua donate?
小华攒了35元零用钱，他拿出其中的(5/7)捐给地震灾区的小朋友．小华捐了多少元？
<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">35 * (5/7)</gadget>
<output>25</output>

<result>25</result>