Add Subtract Fractions Different Denominators

Quiz
•
Mathematics
•
5th Grade
•
Hard
Standards-aligned
Anthony Clark
FREE Resource
14 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the least common denominator you could use to subtract 1/6 and 1/4?
24
16
20
12
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
I should use LCM (least common multiple) when trying to find a common denominator.
true
false
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Is this a correct answer?
Yes, the student correctly added.
No, you cannot add unlike denominators
No, 5 + 7 is not 12
No, 2 + 3 is not 5
Tags
CCSS.5.NF.A.1
CCSS.5.NF.A.2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the least common denominator for 7 and 2?
12
14
7
6
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the the next step to finding this answer?
Add the numerators (1+1=2)
Multiply 12 X 1 for both fractions to find a new numerator
Multiply to find each new numerator by the multiple used to get 12. (3 X1) (4 X 1)
This is a mistake, you don't need to convert to twelfths
Tags
CCSS.5.NF.A.1
CCSS.5.NF.A.2
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When you add or subtract fractions with unlike denominators you..
Add both the numerators and denominators
Change the denominator by picking a random number then divide
Find the least common multiple of both denominators
none of these are true
Tags
CCSS.5.NF.A.1
CCSS.5.NF.A.2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What number could be a common denominator for these two fractions?
2/3 and 3/4
3
4
7
12
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