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Published byDorthy Morton Modified over 9 years ago
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copyright©amberpasillas2010
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A mixed number has a part that is a whole number and a part that is a fraction. = 1 3 4 #1 An improper fraction is when the numerator is greater than the denominator. 1/4 8 4 = numerator denominator
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copyright©amberpasillas2010 To Change An Improper Fraction To A Mixed Number = 5 2 Divide the numerator by the denominator. Put your remainder over the denominator. numerator denominator
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copyright©amberpasillas2010 3 5 2 3 + 15 15 x 5 = x 3 = x 5 = x 3 = 10 9 19 15 1)Find a common denominator. 2) Add the numerators. 3) Keep the common denominator the same. 4) Simplify or reduce. Change improper fraction to mixed #s. 15 ) 19 1 15 4 4
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copyright©amberpasillas2010 2 5 6 8 + 40 x 5 = x 8 = x 5 = x 8 = 30 16 46 40 11 3 40 ) 46 1 6 6 40 1 15 3 20 IMPROPER 3 20
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copyright©amberpasillas2010 3 6 1 8 - 24 x 3 = x 4 = x 3 = x 4 = 3 12 9 24 Always SHOW YOUR WORK ! This includes the Giant One. 3 8 ÷ ÷ 3 3
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copyright©amberpasillas2010 4 3 7 2 = 28 6 6)6) 4 24 4 = 2 3 4 To multiply fractions you do NOT need common denominators. Multiply the numerators and Denominators straight across. Change the improper fraction to a mixed number 4 6 ÷ ÷ 2 2 Reduce! 4 4 6
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copyright©amberpasillas2010 2 3 = 1 5 x 20 20+1 4 + 21 5 42 15 IMPROPER 15 ) 42 2 12 15 30 4 5 2
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copyright©amberpasillas2010 To divide fractions, multiply the first fraction by the reciprocal of the second fraction.
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copyright©amberpasillas2010 To divide fractions, multiply the first fraction by the reciprocal of the second fraction.
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copyright©amberpasillas2010 1 6 6 8 - 24 x 3 = x 4 = x 3 = x 4 = 18 4 -14 24 Always SHOW YOUR WORK! This includes the Giant One. -7 12 ÷ ÷ 2 2
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copyright©amberpasillas2010 4 3 -5 2 = -20 6 6)6) -3 18 2 = 1 3 -3 You do NOT need common denominators Multiply the numerators and denominators s traight across. Change the improper fraction to a mixed number 2 6 ÷ ÷ 2 2 Reduce ! -3 2 6
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copyright©amberpasillas2010
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2 7 6 7 - 7 7 13 30 17 7 4 1 = 1 st : Change your mixed numbers to improper fractions. = 2 nd : Subtract numerators. 3 rd : The denominator stays the same. 4 th : Change your answer to a mixed number. 7)7) 17 2 14 3 7 3 #21
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copyright©amberpasillas2010 FRACTION REVIEW Add Fractions: Find a common denominator. Add the numerators, and keep the denominator the same. Subtract Fractions: Find a common denominator. Subtract the numerators, and keep the denominator the same. Multiply Fractions: Multiply the numerators and denominators straight across. Divide Fractions: Multiply the first fraction by the reciprocal of the second fraction. Mixed Numbers: Change it to an improper fractions first. #22
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