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Published byLiliana Bradley Modified over 8 years ago
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During this topic you will review: EEquivalence of fractions. SSimplifing a fraction. CChange proper fractions to improper fractions. CChange improper to proper fractions
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1 2 2 5 3 9 4 8 2 6 2 8 5 15 1 4 4 6 2 4 3 7 5 9 4 12 9 18 4 10 25 75 30 75 49 98 8 16 3 12 14 35 19 76 25 70 33 99
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Match up the fraction on the left with its equivalent on the right. 2 5 1 3 3 7 4 9 3 8 19 57 24 60 12 28 24 64 84 189
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An improper fraction is one where the numerator (top number) is bigger than the denominator (bottom number). This means that there must be more than one whole one. e.g. = 1 3 2 = 15 4 =
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e.g. 3 2 = 15 4 = 1 2 = 3 3 4 An improper fraction can also be written as a mixed number. This means a whole number and a fraction.
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Mixed Number Improper Fraction Mixed Number Improper Fraction
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To convert an improper fraction into a mixed number: How many times does the denominator go into the numerator ? This is the whole number part. The remainder is the numerator of the fraction part.
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Example: How many times does 9 go into 38? What is the remainder? 38 9 = 4 2 9
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To convert a mixed number into an improper fraction : Multiply the whole number by the denominator then add the numerator This is the numerator of the improper fraction The denominator stays the same.
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Example: 3 5 7 How many sevenths is 3 whole ones? 3 x 7 = 21 = 21 7 + 5 7 = 26 7
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