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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 5 - Mathematics
5.28 Improper Fractions

  • To reduce an improper fraction to lowest terms, divide the numerator and denominator by their greatest common factor (GCF). This is also called simplifying the fraction.
  • We reduce a fraction to lowest terms by finding an equivalent fraction in which the numerator and denominator are as small as possible.
  • This means that there is no number, except 1, that can be divided evenly into both the numerator and the denominator.
Example: Reduce 20/16 to the simplest form.
Common factor of 20 and 16 is 2
Therefore 20/16 can be written as 10/8
Common factor of 10 and 18 is 2
Therefore 10/8 can be written as 5/4
20/16 = 10/8 = 5/4

Answer: 5/4

Example: Add 5/4 + 7/4 and reduce to the simplest form.
Add 5/4 + 7/4 which gives 12/4.
12/4 = 3
Answer: 3


Directions: Answer the following question. Also write at least ten examples of your own.
Q 1: Subtract and reduce 16/5 - 7/5 =
2 4/5
4 1/5
1 4/5

Q 2: Subtract and reduce 22/5 - 7/5 =
1
4
2
3

Q 3: Subtract and reduce 5/4 - 3/4 =
1/4
1/3
1/2

Q 4: Reduce 24/8 =
3
4
1
2

Q 5: Reduce 17/8 =
2 1/8
3 1/8
3 1/4
1 7/8

Q 6: Add & reduce 4/5 + 6/5 =
1
3
4
2

Q 7: Add & reduce 9/10 + 5/10 =
2 1/10
1 1/5
1 2/5
1 3/10

Q 8: Subtract and reduce 16/3 - 3/3 =
4 1/3
5 1/3
3 1/3
2 1/3

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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