Difference between revisions of "Fraction"
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The top number is called the [[numerator]]. The bottom number is the [[denominator]]. | The top number is called the [[numerator]]. The bottom number is the [[denominator]]. | ||
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| + | All fractions can be expressed as [[decimal]]s, and vice versa. If the denominator is not a [[power of ten]], you get a [[repeating decimal]] or [[repeating fraction]]. You can round it off, or use a vertical line over the repeating digits. | ||
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| + | 1/3 = 0.33 (rounded to two digts) | ||
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| + | The digit 3 repeats indefinitely, so if you need more precision you can write 0.33333 or whatever. | ||
==See Also== | ==See Also== | ||
Revision as of 13:09, January 5, 2009
A fraction is a representation of a rational number written with two numbers separated by a slash. Like: 1/2. Or one over the other, separated by a horizontal line. Thus:
The top number is called the numerator. The bottom number is the denominator.
All fractions can be expressed as decimals, and vice versa. If the denominator is not a power of ten, you get a repeating decimal or repeating fraction. You can round it off, or use a vertical line over the repeating digits.
1/3 = 0.33 (rounded to two digts)
The digit 3 repeats indefinitely, so if you need more precision you can write 0.33333 or whatever.