Quiz for:
Adding and Subtracting Fractions with Unlike Denominators
Question 17
What is the result when subtracting 2/3 from 8/9 and simplifying?
A.2/9
B.9/2
C.27/6
D.6/27
Question 1
What is the first step when adding or subtracting fractions with different denominators?
A.Get common denominators
B.Add the numerators directly
C.Subtract the numerators directly
D.Multiply the denominators
Question 2
How do you find a common denominator quickly?
A.Multiply the numerators
B.Add the denominators
C.Multiply the denominators
D.Subtract the denominators
Question 3
What happens when you multiply by 1 in fraction form (e.g., 7/7)?
A.The fraction changes value
B.The fraction simplifies
C.The fraction remains the same
D.The fraction becomes a whole number
Question 4
What is the result when adding 1/7 and 2/3 with the common denominator of 21?
A.13/21
B.21/13
C.7/3
D.3/7
Question 5
What is the result when subtracting 8/9 from 2/3 with the common denominator of 30?
A.23/30
B.30/23
C.5/9
D.9/5
Question 6
What is the common denominator when adding 5/8 and 3/7?
A.56
B.63
C.72
D.80
Question 7
What is the result when subtracting 3/7 from 5/8 with the common denominator of 56?
A.11/56
B.56/11
C.7/8
D.8/7
Question 8
What is the result when subtracting 2/3 from 8/9 with the common denominator of 27?
A.6/27
B.27/6
C.2/9
D.9/2
Question 9
Why might you simplify a fraction after adding or subtracting?
A.The answer is too large
B.You used a common denominator that is not the least common denominator
C.The answer is incorrect
D.You made a mistake in your calculations
Question 10
What is the least common denominator for 9 and 3?
A.27
B.9
C.3
D.None of the above
Question 11
How do you simplify a fraction like 6/27?
A.Divide both numerator and denominator by 3
B.Divide both numerator and denominator by 2
C.Multiply both numerator and denominator by 3
D.Add both numerator and denominator by 3
Question 12
What is the final answer when simplifying 6/27?
A.2/9
B.9/2
C.27/6
D.6/27
Question 13
Why is it important to use the least common denominator?
A.It simplifies the process
B.It ensures the answer is correct
C.It saves time
D.It avoids simplification later
Question 14
What is the result when adding 1/7 and 2/3 without simplifying?
A.13/21
B.21/13
C.7/3
D.3/7
Question 15
What is the result when subtracting 2/3 from 8/9 without simplifying?
A.23/30
B.30/23
C.5/9
D.9/5
Question 16
What is the result when subtracting 3/7 from 5/8 without simplifying?
A.11/56
B.56/11
C.7/8
D.8/7
Question 17
What is the result when subtracting 2/3 from 8/9 and simplifying?
A.2/9
B.9/2
C.27/6
D.6/27
Question 1
What is the first step when adding or subtracting fractions with different denominators?
A.Get common denominators
B.Add the numerators directly
C.Subtract the numerators directly
D.Multiply the denominators