The fifth grade students collected 56 kilograms of tree species, the sixth grade collected more (4/7) than the fifth grade, how many kilograms of tree species did the fifth grade collect less than the sixth grade?
五年级同学收集树种56千克，六年级收集的比五年级多(4/7)，五年级比六年级少收集树种多少千克？
<gadget id="calculator">4 / 7</gadget>
<output>4/7 = around 0.571429</output>

<gadget id="calculator">56 * (4/7)</gadget>
<output>32</output>

<result>32</result>