The fifth grade planted 105 trees, and the sixth grade planted 105 trees (7/5). How many trees were planted in the fifth and sixth grades?
五年级植树105棵，六年级植树的棵数是五年级的(7/5)，五、六年级一共植树多少棵？
<gadget id="calculator">7 / 5</gadget>
<output>7/5 = around 1.4</output>

<gadget id="calculator">105 * (7/5)</gadget>
<output>147</output>

<gadget id="calculator">147 + 105</gadget>
<output>252</output>

<result>252</result>