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We have already seen how to enter some simple fractions. Fractions with complicated numerators or denominators must have the numerator and/or denominator surrounded by brackets. These brackets will not be displayed, they are used as logical brackets so that you clearly indicate the elements that comprise the numerator and denominator.
is entered as (3x+2)/4
is entered as ((x+1)2(x+2))/(x+1)
is entered as x=(-b +- sr(b2-4ac))/2a or you can use the qf standard shortcut.
is entered as 1/(1+4x^(3x/2)+1/(2x2+1/2))
The equation technology can be set to shrink non-algebraic fractions (like the 1/2 in the equation above). This usually produces superior results and is necessary for the display of mixed numerals