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1⁄3 + 1⁄3 =
2⁄3

1⁄4 + 2⁄4 =
3⁄4

2⁄5 + 1⁄5 =
3⁄5

2⁄3 + 1⁄3 =
1


4⁄7 + 1⁄7 =
5⁄7

1⁄6 + 2⁄6 =
1⁄2

3⁄8 + 4⁄8 =
7⁄8

3⁄4 + 3⁄4 =
1 1⁄2


5⁄7 + 4⁄7 =
1 2⁄7

4⁄5 + 3⁄5 =
1 2⁄5

3⁄8 + 2⁄8 =
5⁄8

1⁄9 + 3⁄9 =
4⁄9


5⁄12 + 6⁄12 =
11⁄12

1⁄4 + 3⁄4 =
1

4⁄9 + 7⁄9 =
1 2⁄9

1⁄12 + 7⁄12 =
1⁄3


4⁄16 + 6⁄16 =
5⁄8

2⁄8 + 2⁄8 =
1⁄2

2⁄16 + 4⁄16 =
3⁄8

3⁄32 + 5⁄32 =
1⁄4


3⁄15 + 7⁄15 =
2⁄3

1⁄8 + 1⁄8 =
1⁄4

3⁄7 + 3⁄7 =
6⁄7

7⁄17 + 12⁄17 =
1 2⁄17

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The various resources listed below are aligned to the same standard, (4NF03) taken from the CCSM (Common Core Standards For Mathematics) as the Fractions Worksheet shown above.
Understand a fraction a/b with a > 1 as a sum of fractions 1/b.
Similar to the above listing, the resources below are aligned to related standards in the Common Core For Mathematics that together support the following learning outcome:
Build fractions from unit fractions by applying and extending previous understandings of operations on whole numbers