There are 105 students in the fifth grade, which is equivalent to (7/8) of the number of sixth graders. How many students are there in the fifth and sixth grades?
五年级有学生105人，相当于六年级人数的(7/8)，五、六年级共有多少人？
<gadget id="calculator">7 / 8</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">105 / (7/8)</gadget>
<output>120</output>

<gadget id="calculator">120 + 105</gadget>
<output>225</output>

<result>225</result>