Carnegie Rational Numbers - Fractions
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| fraction | Represents a part of a whole object, set, or unit. Written using two whole numbers separated by a bar.
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| numerator | The number above the fraction bar. It indicates how many parts in the whole are counted.
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| denominator | The number below the fraction bar. It indicates how many parts make up the whole.
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| unit fraction | This has a numerator of 1 and a denominator that is a positive integer greater than 1.
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| equivalent fractions | These represent the same whole
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| benchmark fractions | Common ones that are used to estimate how much others are. An example is 1/2.
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| inequality | Any mathematical sentence that shows a comparison.
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| simplest form | A way of writing a fraction so that the numerator and the denominator have no common factors other than 1.
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| Multiplicative Identity Property | This states that a X 1 = a, where a is a nonzero number.
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| common denominator | a whole number that is a common multiple of the denominators of two or more fractions.
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| least common denominator (LCD) | The least common multiple of the denominators of two or more fractions.
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| mixed number | This has a whole number part and a fraction part.
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| improper fraction | A fraction in which the numerator is greater than or equal to the denominator.
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| reciprocal | This is also known as the multiplicative inverse of the number.
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| Multiplicative Inverse Property | This states that a/b X b/a = 1, where a and b are nonzero numbers.
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| multiplicative inverse | This means that for the fraction a/b this would be b/a, where a and b are nonzero numbers. The product of these two fractions is 1.
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