Post on 17-Jan-2016
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• A quick game of sparkle using previous vocabulary words.
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Review of Yesterdays Vocabulary.
• The least common multiple of two or more numbers
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• Least Common Denominator (LCD)
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• Fractions with different denominators.
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• Unlike Fractions
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• A number represented by a whole number and a fraction.
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• Mixed Number
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• The part of a number that tell how many parts are being used.
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• Numerator
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• The part of the fraction the tells how many equal parts are in the whole.
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• Denominator
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• Fractions that name the same amount or part.
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• Equivalent Fractions
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A mixed number has a part that is a whole number and a part that is a fraction.
= 1 34
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1316+
Shortcut to find the LCD.
Will 3 divide into 6? Use 6 as
your LCD.
6
6
103
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1316+
Now find theequivalentfractions for
1/3 & 1/6.
6
6x 1 =
x 2 =
Ask what do you multiply 3 by to get 6and what do you multiply 6 by to get 6.
103
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1316+
You are writing equivalentfractions.
6
6x 1 =
x 2 =x 1 =
x 2 =10
3
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1316+
6
6x 1 =
x 2 =x 1 =
x 2 =10
3Now multiply
across.
2
1
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1316+
6
6x 1 =
x 2 =x 1 =
x 2 =10
3
2
1Add
numerators.
36
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1316+
6
6x 1 =
x 2 =x 1 =
x 2 =10
3
2
1
36
Addwhole
numbers.
13
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Simplify Your Answer
3613 3
3 = 13 12
÷÷
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Board Practice
Do the equation:11 4/5 + 2 1/3
Worksheet questions 1and 2
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Game TimeDomino Race
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Renaming pgs 214 - 217
•Remember that when you subtract fractions you may need to rename the first mixed number.
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Subtract the fractions(find the LCD)
13 - 6 3416
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Our new problem is:What do we do next?
13 - 6 912212
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Step 2:
• Rename using 12 as the denominator
13212
=
12+
212
=
13
=
12 1212
212+
1+
+
212
+
=
121412
13212
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Step 2 continued…
• Our new subtraction problem is:
13-
6 912
=
= 6
912
121412212
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Step 3:
• Subtract the fractions.
6 912
121412-
512
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Step 4:
• Subtract the whole numbers
6 912
121412-
5126
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Step 5:
• Simplify the fraction into lowest terms.
• In this case the fraction is in lowest terms.
5126
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Subtract the fractions on the board.
8 - 2 4538
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RENAMING
• Work sheet
• Any questions raise your hand, I WILL HELP YOU.
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Game TimeAngry Bird Quiz
(Review of newly learned material)
Use the space on the paper to calculate.
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• Tomorrows Objective: Chapter 9 Lesson 6 (pg 218)
• - Problem solving strategy
• - Drawing diagrams
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• Thank You