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based on an earlier version of the Wolfram Language.
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 Documentation / Mathematica / Other Information / 2D Expression Input / Entering 2D Expressions  /

Fractions

How to type

Start with the expression that will be the numerator.

Type x

Create a built-up fraction by pressing the Control and Slash keys at the same time. The placeholder in the denominator is already selected.

Press /

Fill in the denominator.

Type y

Move the insertion point out of the fraction by pressing the Control key and the Space bar at the same time.

Press

How to type

Repeat the steps of the first example.

Type x, press /, type y, press

Once the insertion point is out of the fraction you can continue typing.

Type +z

How to type

Do the first few steps of the previous example.

Type x, press /, type y

Continue typing in the denominator and then come out of the fraction.

Type +z, press /

How to type

Create a built-up fraction with Control-Slash. The numerator and denominator contain placeholders; the one in the numerator is selected.

Press /

Type an expression in the numerator.

Type x+y

Select the placeholder in the denominator by the pressing the Tab key. (Alternatively, you can select the placeholder by clicking it or dragging.)

Press

Fill in the numerator and get out of the fraction with Control-Space.

Type z, press

Another way to type

Start with the expression that will be the numerator.

Type x+y

Select the expression. (You can select by dragging, by pressing Control-Dot repeatedly, or by clicking the expression repeatedly.)

Select it

Create a built-up fraction by pressing Control-Slash.

Press

Fill in the numerator and get out of the fraction with Control-Space.

Type z, press