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Lesson 6-2 Pages 244-247
Adding and Subtracting Fractions
Lesson Check 6-1
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What you will learn!
How to add and subtract fractions.
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What you really need to know!Like fractions are fractions that have the same denominator. To add or subtract like fractions, add or subtract the numerators and write the result over the denominator.Simplify if necessary.
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What you really need to know!To add or subtract unlike fractions, rename the fractions with a least common denominator. Then add or subtract as with like fractions.Simplify if necessary.
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1211
124
127
Example 1:
124
127
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Example 2:
61
65
32
64
61
65
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Example 3:
91
31
93
33
31
94
91
93
91
11
91
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Example 4:
61
43
129
33
43
127
122
129
122
22
61
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Example 5:
A picture is mounted on art board that is 1/8 inch thick. The frame selected for the picture is 1/2 inch thick. The thickness of the picture is so small that it can be ignored. What thickness of cardboard is needed to hold the picture in place?
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inch83
81
84
Example 5:
81
21
84
44
21
81
11
81
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Page 246
Guided Practice
#’s 4-14
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Pages 244-245 with someone at home and study
examples!
Read:
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Homework: Page 246-247
#’s 16-40 even
#’s 43-54
Lesson Check 6-2
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Page
577
Lesson 6-2
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Lesson Check 6-2