When the No. 1 Primary School in Hongsibao District published the book "The Origin of Spring", 25% of the total pages were typed on the first day, 1/3 of the total pages were typed on the second day, and 45 pages were typed on the third day Just finished. (Please ask four questions and list the formulas without answers.)
红寺堡区第一小学出版《春之源》这部书时，第一天打了总页数的25%，第二天又打了总页数的(1/3)，第三天再打45页刚好打完．(请你提出四个问题，列出算式不解答．)
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/4) - (1/3)</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">45 / (5/12)</gadget>
<output>108</output>

<result>108</result>