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Adding And Subtracting Fractions
Test Description: Adding and subtracting fractions with like and unlike denominators.
Instructions: Answer all questions to get your test result.
1) When adding/subtracting fractions with LIKE denominators, you need to...
A
add/subtract their numerators
B
add/subtract both their numerators and denominators
C
add/subtract their denominators
2) 9/14 - 5/14
A
14/28
B
4/28
C
14/14
D
4/14
3) 1/8 + 7/8
A
8/8
B
-6/16
C
-6/8
D
8/16
4) 6/13 - 7/13
A
-1/26
B
-1/13
C
13/13
D
1/13
5) 7/25 + 13/25
A
6/25
B
6/50
C
20/25
D
20/50
6) 17/24 - 9/24
A
26/24
B
-8/24
C
8/48
D
8/24
7) When adding/subtracting fractions with unlike denominators you must first find their...
A
LCF (least common factor)
B
favorite restuarant
C
LCM (least common multiple)
8) What is the LCM of 4 and 3?
A
7
B
3
C
4
D
12
9) 3/4 + 2/3
A
5/12
B
17/12
C
32/43
D
5/43
10) What is the LCM of 15 and 5?
A
1
B
5
C
30
D
15
11) 13/15 - 1/5
A
10/5
B
10 /15
C
12/15
D
14/5
*select an answer for all questions
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