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copyright©amberpasillas2010 MULTIPLYING FRACTIONS
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copyright©amberpasillas2010 If I have one-half of a one-fourth piece, how much will I have compared to a whole square?
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copyright©amberpasillas2010 Multiply ½ times ¼ x = ½ ¼
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copyright©amberpasillas2010 Multiply ½ times ¼ x = ½ ¼
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copyright©amberpasillas2010 Multiply ½ times ¼ x = ½ ¼ 1/8
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copyright©amberpasillas2010 If I have three-fifths of a three-fourths piece, how much will I have compared to a whole square?
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copyright©amberpasillas2010 Multiply 3/5 times 3/4 x = 3/5 3/4
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copyright©amberpasillas2010 Multiply 3/5 times 3/4 x = 3/5 3/4
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copyright©amberpasillas2010 Multiply 3/5 times 3/4 x = 3/5 3/4 = 9/20
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copyright©amberpasillas2010 If I have one-half of a two thirds piece, how much will I have compared to a whole square?
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copyright©amberpasillas2010 Multiply ½ times 2/3 x = ½ 2/3
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copyright©amberpasillas2010 Multiply ½ times 2/3 x = ½ 2/3
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copyright©amberpasillas2010 Multiply ½ times 2/3 x = ½ 2/3 = 2/6 = 1/3
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copyright©amberpasillas2010 Multiplying Fractions Model 9 out of 20 boxes shaded
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copyright©amberpasillas2010 Area Model for Multiplication 2 out of 12 boxes shaded
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copyright©amberpasillas2010 You are going to get a new study guide titled MULTIPLY FRACTIONS MODEL You can use this on your test! Take a look at the 1 st example!
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copyright©amberpasillas2010 If I have one-third of a one-half piece, how much will I have compared to a whole square? Draw one-third (horizontal) Draw one-half (vertical) 1313 1212 What is 1/3 of ½? Draw a picture.
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copyright©amberpasillas2010 If I have one-third of a one-half piece, how much will I have compared to a whole square? Draw one-third (horizontal) Draw one-half (vertical) 1313 1212 What is 1/3 of ½? Draw a picture.
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copyright©amberpasillas2010 If I have one-third of a one-half piece, how much will I have compared to a whole square? Draw one-third (horizontal) Draw one-half (vertical) 1313 1212 What is 1/3 of ½? Draw a picture. NOW TRY EXAMPLE#2 We will do this together. Watch as I show you how to do it.
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copyright©amberpasillas2010 Try example # 2 on the front right side.
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copyright©amberpasillas2010 Follow the examples shown to solve each fraction problem. Draw a picture, label it, and circle your answer.
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copyright©amberpasillas2010 1) Two-thirds times one-fourth? Try the rest of your study guide. I will ask for volunteers in about 5 minutes.
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copyright©amberpasillas2010 Study Guide ANSWERS
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copyright©amberpasillas2010 Multiplying Fractions
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copyright©amberpasillas2010 –18 6 = –2(9) 3(2) Simplify. –3 = Multiply numerators. Multiply denominators. 1212 2323 – Multiplying Fractions 4 Write4 as an improper fraction. 1212
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copyright©amberpasillas2010 Cross Canceling Cross-Canceling- Reducing before you multiply.
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copyright©amberpasillas2010 Cross Canceling
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copyright©amberpasillas2010 Take Out Your Study Guide!!!
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copyright©amberpasillas2010 Draw one-third ( horizontal ) Draw negative one-half ( vertical ) 1313 2 What is of ? Draw a picture (overlay them). #14 + – = –
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copyright©amberpasillas2010 Multiply 4 3 7 2 = 28 6 6)6) 4 24 4 = 2 3 4 You do NOT need common denominators Multiply the numerators and denominators straight across. #15 Change the improper fraction to a mixed number 4 6 ÷ ÷ 2 2 Reduce! 4 4 6
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copyright©amberpasillas2010 Extras
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Multiplying Fractions
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copyright©amberpasillas2010 Multiplying Fractions
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copyright©amberpasillas2010 Draw one-third ( horizontal ) Draw one-half ( vertical ) 1313 1 2 What is of ? Draw a picture (overlay them). # Extra
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