Adding and Subtracting Fractions with Common Denominators
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Transcript of Adding and Subtracting Fractions with Common Denominators
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Adding and SubtractingFractions
with Common Denominators
Using Pictorial Representations
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What is the sum of these fractions?
36
26
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What is the sum of these fractions?
25
45
+ =
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Find the difference.•Identify and write the fractions.•Count the sections of the smaller fraction•Mark an X on each section of the larger fraction to show how many you will subtract.•Count the shaded sections that you have left—this is the numerator of the difference.
x xxx
1 2
43
710
410- =
310
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Find the difference.
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What is the sum of these fractions?
25
45
If you fill in this shape, you have 5 out of 5 or ONE
and one fifth left in the other fraction.
151+ =
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What is the sum of these fractions?
34
34+
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What is the sum of these fractions?If you fill in this
shape, you have 4 out of 4 or ONE
and two fourths left in the other fraction.
2413
434+ =
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What is the sum of these fractions?
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Find the difference.
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What is the sum of these fractions?
15
25+
35=
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Find the difference.
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Which two fractions have a sum of 1?
BA C D
Explain how to solve this problem?
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BA C D
Which two fractions add to ?
Explain how to solve this problem?
45
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Which two fractions could you add together to get more than one?
BA C
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Which fraction is shaded to show a fraction
that is more than half?
Explain your answer?
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What is the sum of these fractions?
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Find the difference.
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Which fraction is shaded to show one half?
Explain your answer?
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Which two fractions have a sum of 1?
Explain how to solve this problem?
BA C
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Which fraction is shaded to show a fraction
that is less than half?
Explain your answer?
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What is the sum of these fractions?
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Will the sum of these two fractionsbe more than one or less than one?
What will be the sum?
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Which two fractions have a sum of 1?
Explain how to solve this problem?
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What is the sum of these fractions?
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What is the sum of these fractions?
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BA C
FED
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Which two fractions
add to ?
581
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Find the difference.