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Basic Fraction Subtraction - Sample Math Practice Problems

The math problems below can be generated by MathScore.com, a math practice program for schools and individual families. References to complexity and mode refer to the overall difficulty of the problems as they appear in the main program. In the main program, all problems are automatically graded and the difficulty adapts dynamically based on performance. Answers to these sample questions appear at the bottom of the page. This page does not grade your responses.

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Complexity=4, Mode=same-den

Subtract each pair of fractions and simplify the result.

1.  
2
4
-
2
4
2.  
4
4
-
2
4

Complexity=5, Mode=same-den

Subtract each pair of fractions and simplify the result.

1.  
2
3
-
2
3
2.  
4
5
-
3
5

Complexity=7, Mode=same-den

Subtract each pair of fractions and simplify the result.

1.  
2
3
- 0
2.  
3
5
-
3
5

Complexity=9, Mode=same-den

Subtract each pair of fractions and simplify the result.

1.  
7
7
-
4
7
2.  
7
9
-
7
9

Complexity=12, Mode=same-den

Subtract each pair of fractions and simplify the result.

1.  
2
7
- 0
2.  
2
3
- 0

Complexity=4, Mode=simple

Subtract each pair of fractions and simplify the result.

1.  
1
3
-
1
3
2.  
1
2
-
1
3

Complexity=6, Mode=simple

Subtract each pair of fractions and simplify the result.

1.  
3
5
-
1
6
2.  
1
2
-
1
3

Answers

Complexity=4, Mode=same-den

Subtract each pair of fractions and simplify the result.

#ProblemCorrect AnswerYour Answer
1
2
4
-
2
4
Solution
Subtract numerators to get this:
0
#ProblemCorrect AnswerYour Answer
2
4
4
-
2
4
Solution
Subtract numerators to get this:
2
4
Now simplify to get this:
1
2

Complexity=5, Mode=same-den

Subtract each pair of fractions and simplify the result.

#ProblemCorrect AnswerYour Answer
1
2
3
-
2
3
Solution
Subtract numerators to get this:
0
#ProblemCorrect AnswerYour Answer
2
4
5
-
3
5
Solution
Subtract numerators to get this:
1
5

Complexity=7, Mode=same-den

Subtract each pair of fractions and simplify the result.

#ProblemCorrect AnswerYour Answer
1
2
3
- 0
Solution
#ProblemCorrect AnswerYour Answer
2
3
5
-
3
5
Solution
Subtract numerators to get this:
0

Complexity=9, Mode=same-den

Subtract each pair of fractions and simplify the result.

#ProblemCorrect AnswerYour Answer
1
7
7
-
4
7
Solution
Subtract numerators to get this:
3
7
#ProblemCorrect AnswerYour Answer
2
7
9
-
7
9
Solution
Subtract numerators to get this:
0

Complexity=12, Mode=same-den

Subtract each pair of fractions and simplify the result.

#ProblemCorrect AnswerYour Answer
1
2
7
- 0
Solution
#ProblemCorrect AnswerYour Answer
2
2
3
- 0
Solution

Complexity=4, Mode=simple

Subtract each pair of fractions and simplify the result.

#ProblemCorrect AnswerYour Answer
1
1
3
-
1
3
Solution
Subtract the fractions to get this:
0
#ProblemCorrect AnswerYour Answer
2
1
2
-
1
3
Solution
The LCD is 6
Adjust the denominators to get this:
3
6
-
2
6
Subtract the fractions to get this:
1
6

Complexity=6, Mode=simple

Subtract each pair of fractions and simplify the result.

#ProblemCorrect AnswerYour Answer
1
3
5
-
1
6
Solution
The LCD is 30
Adjust the denominators to get this:
18
30
-
5
30
Subtract the fractions to get this:
13
30
#ProblemCorrect AnswerYour Answer
2
1
2
-
1
3
Solution
The LCD is 6
Adjust the denominators to get this:
3
6
-
2
6
Subtract the fractions to get this:
1
6
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