Subtracting Fractions Worksheet
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1SUBTRACTING FRACTIONS WITH UNLIKE DENOMINATORS
NAME:
FIND THE LEAST COMMON MULTIPLE
NOW WE CAN SUBTRACT
5
2
10
x
=
1 X 4 = 4
5
3
6
2
12
10
9
1
x
1 X 6 = 6
2 X 4 = 8
-
-
=
2 X 6 = 12 **
3 X 4 = 12 **
3 X 6 = 18
4 X 4 = 16
6
4
3
3
9
12
12
12
x
4 X 6 = 24
5 X 4 = 20
=
4
3
12
6 X 4 = 24
x
SEE THE COMMON
DENOMINATOR?
** THEY HAVE 12 IN COMMON **
CHANGE THE DENOMINATORS
(BOTTOM NUMBERS) TO 12 , BUT
REMEMBER, WHAT EVER YOU
DO TO THE BOTTOM YOU NEED
TO DO TO THE TOP!
SUBTRACT.
1
3
4
1
5
2
1
1
-
-
-
-
=
=
=
=
1.
2.
3.
4.
2
7
9
3
6
5
2
4
2
6
4
1
3
3
4
3
-
=
-
=
-
=
-
=
5.
6.
7.
8.
3
11
9
6
4
8
5
13
9
3
5
2
5
9
8
7
-
-
-
-
=
=
=
=
9.
10.
11.
12.
12
4
8
5
7
14
11
10
5
4
11
1
7
1
7
7
-
-
-
-
=
=
=
=
13.
14.
15.
16.
6
15
18
3
16
6
8
10
8
3
4
4
3
5
11
1
-
-
-
-
=
=
=
=
17.
18.
19.
20.
9
5
5
7
8
16
14
4
7
1
5
4
11
4
2
2
-
-
-
-
=
=
=
=
21.
22.
23.
24.
10
4
6
11
12
7
3
5
LEVEL 1
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