Adding Fractions w/ unlike denominators
2 1
____ + ____ =
3 4
11
___
12
1 1
____ - ___ =
3 4
1
___
12
3 2
2 ____ + ___ =
4 3
41
____
12
What is a denominator?
The number below the line in a fraction.
10/24
5/12
3 2
____ + ___ =
4 3
17
___
12
2 1
____ - ___ =
3 5
7
__
15
1 5
2 ____ + ___ =
4 6
74
______
24
What is a numerator?
The number above the line in a fraction.
16/28
4/7
4 3
____ + ___ =
5 4
31
____
20
1 1
____ - ___ =
2 5
3
__
10
1 4
3 ____ + ___ =
4 5
81
____
20
What does equivalent mean?
Equal in value or the same in value.
24/42
4/7
6 5
____ + ___ =
7 6
71
_____
42
4 2
____ - ___ =
5 3
2
___
15
1 4
3 ____ - ___ =
5 6
76
____
30
What does simplify mean?
To reduce a fraction to it's simplest form.
35/42
5/6
5 7
____ + ___ =
7 8
89
_____
56
5 1
____ - ___ =
7 3
8
___
21
2 2
4 ____ - 3 ___ =
6 3
12 2
_____ = _____
18 3
What is a common denominator?
a shared multiple of the denominators
14/56
1/4