There are 45 students in Class 1 of Hope Primary School, which is exactly (1/10) of the whole school. How many people are there in the whole school?
希望小学六一班有45人，正好是全校人数的(1/10)，全校有多少人？
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">45 / (1/10)</gadget>
<output>450</output>

<result>450</result>