
Understanding Fractions and Finding the Lowest Common Denominator
Interactive Video
•
Mathematics
•
6th - 8th Grade
•
Hard
Jennifer Brown
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary goal of the video tutorial?
To find the lowest common denominator
To learn multiplication tables
To teach how to add fractions
To solve algebraic equations
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to find the lowest common denominator when adding fractions?
It changes the value of fractions
It allows fractions to be added directly
It simplifies the fractions
It is only necessary for subtraction
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the example of adding 1/3 and 2/5, what is the lowest common denominator?
30
5
10
15
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in finding the LCD using prime factorization?
Divide the numerators
Prime factor each denominator
Multiply the denominators
Add the fractions
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When prime factors have different exponents, which exponent should be used in the LCD?
The sum of the exponents
The highest exponent
The average of the exponents
The smallest exponent
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the example of 1/4 + 3/10, what is the LCD?
20
10
40
30
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the prime factorization of 64?
2^6
8^2
4^3
16^2
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