Guangming Primary School selected 135 "three good" students this year, and the number of "three good" students (7/9) is exactly equal to the number of the whole school (1/8). How many students are there in Guangming Primary School?
光明小学今年评出"三好"学生135人，"三好"学生人数的(7/9)刚好与全校人数的(1/8)相等．光明小学共有学生多少人？
<gadget id="calculator">7 / 9</gadget>
<output>7/9 = around 0.777778</output>

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">(7/9) / (1/8)</gadget>
<output>56/9 = around 6.222222</output>

<gadget id="calculator">135 * (56/9)</gadget>
<output>840</output>

<result>840</result>