When Xiao Liang reads a book, when he has read (3/4) of the pages of the whole book, it is exactly 78 pages. How many pages did Xiao Liang not read?
小亮读一本书，当读了全书页数的(3/4)时，正好是78页．小亮还有多少页没有看？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">78 / (3/4)</gadget>
<output>104</output>

<gadget id="calculator">104 - 78</gadget>
<output>26</output>

<result>26</result>