Math Worksheet - Grade 7 Page 23
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34th
7
Grade Honors
Unit: Knowledge of Number Relationships & Computation
Objective: Add, subtract, and multiply positive fractions and mixed numbers. - A
Examples:
• To add unlike fractions (fractions with different denominators), rename the fractions so there is a
common denominator.
1
2
1
1
x
5
5
2
2
x
6
12
5
12
17
Add:
+
=
=
=
=
=
+
=
6
5
6
6
x
5
30
5
5
x
6
30
30
30
30
1
2
1
1
x
3
3
2
2
x
2
4
Add:
12
8
12
12
12
8
8
8
+
=
=
=
=
=
2
3
2
2
x
3
6
3
3
x
2
6
3
4
7
7
1
is improper so we must change it to proper. 7 divided by 6 = 1
12
8
20
+
=
6
6
6
6
6
1
1
20 + 1
21
=
6
6
1
1
4
2
1.) Add:
2.) Add:
7 +
10
+
3
9
9
9
5
1
1
2
3.) Add:
4.) Add:
1 +
4
2 +
2
9
6
2
3
6.) You want to make a scarf and matching hat. The
3
5.) A quiche recipe calls for
cups of grated cheese.
2
7
4
pattern calls for 1
yards of fabric for the scarf and
1
8
A recipe for quesadillas requires
1 cups of grated
1
3
2
yards of fabric for the hat. How much fabric do you
cheese. What is the total amount of grated cheese
2
needed for both recipes?
need in all?
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