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Start Excel.
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Before you type fractions in cells, pre-format the group of cells that need to be displayed as fractions. Select the cells where you want to enter fractions, and then on the Format menu, click Cells.
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In the Category list, click Fraction and then, from the list on the right, select the type of fraction that you would like to display. Click OK.
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To type fractions in these preformatted cells, type the numerator, then a slash "/", then the denominator. Do not type spaces.
• For example, type "1/2" to represent one-half. If you type "4/8" to represent one-half, Office Excel will reduce it to 1/2. Excel reduces all fractions to their lowest terms.
• If you need to type a whole number and a fraction in the same cell, type the whole number followed by a space, and then type the fraction (numerator, slash, denominator), for example, "2 4/9".