Adding and Subtracting Fractions with Unlike Denominators
Interactive Video
•
Mathematics
•
6th - 10th Grade
•
Practice Problem
•
Hard
+3
Standards-aligned
Jackson Turner
FREE Resource
Standards-aligned
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in adding or subtracting fractions with different denominators?
Multiply the fractions
Subtract the denominators
Find the least common multiple
Add the numerators
Tags
CCSS.7.NS.A.1C
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you find the least common multiple of two numbers?
Add them together
Find the highest number that divides both
List multiples of each and find the smallest common one
Multiply them
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To keep fractions equivalent when changing denominators, what must you do to the numerator?
Add the original denominator
Multiply by the same number as the denominator
Divide by the new denominator
Nothing
Tags
CCSS.3.NF.A.3A
CCSS.3.NF.A.3B
CCSS.4.NF.A.1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the denominators when adding fractions with a common denominator?
They are multiplied
They are subtracted
They remain unchanged
They are added together
Tags
CCSS.4.NF.B.3C
CCSS.4.NF.B.3D
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the least common multiple of 9 and 3?
9
27
3
18
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
After finding a common denominator and adjusting fractions, what is the next step?
Multiply the fractions
Change the denominators again
Add or subtract the numerators
Simplify the fractions
Tags
CCSS.7.NS.A.1C
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When subtracting fractions and the numerators are subtracted, what do you do with the denominator?
It is divided by 2
It is also subtracted
It remains the same
It is multiplied by 2
Tags
CCSS.4.NF.B.3C
CCSS.4.NF.B.3D
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