Adding Fractions
Quiz
•
Mathematics
•
7th Grade
•
Practice Problem
•
Hard
+5
Standards-aligned
Chad Studer
Used 7+ times
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16 questions
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1.
MATH RESPONSE QUESTION
2 mins • 1 pt
Mathematical Equivalence
ON
Answer explanation
To find the least common denominator of 3/4 and 2/5, we need to find the smallest number that both 4 and 5 can divide into evenly. The least common multiple of 4 and 5 is 20. Therefore, the least common denominator of 3/4 and 2/5 is 20. This means that if we convert both fractions to have a denominator of 20, we can compare them more easily. So, the correct answer is 20.
Tags
CCSS.4.NF.A.2
2.
MATH RESPONSE QUESTION
2 mins • 1 pt
Convert 1/3 to a fraction with a denominator of 9.
Mathematical Equivalence
ON
Answer explanation
To convert 1/3 to an equivalent fraction with a denominator of 9, we need to multiply both the numerator and denominator by the same number. In this case, we multiply both 1 and 3 by 3 to get 3/9. Therefore, the equivalent fraction of 1/3 with a denominator of 9 is 3/9.
Tags
CCSS.4.NF.A.1
CCSS.4.NF.A.2
3.
MATH RESPONSE QUESTION
2 mins • 1 pt
Add 1/2 and 3/4.
Mathematical Equivalence
ON
Answer explanation
To add 1/2 and 3/4, we need to find a common denominator, which is 4. Then, we add the numerators: 1 + 3 = 4. The sum is 4/4, which simplifies to 1. Therefore, the correct answer is 1/1 or simply 1. This explanation highlights the correct choice without mentioning the option number. The given question asks to add 1/2 and 3/4, not query. The explanation is within the word limit of 75 words.
Tags
CCSS.3.NF.A.1
4.
MATH RESPONSE QUESTION
2 mins • 1 pt
Simplify the fraction 4/8 after adding 1/4 and 1/8.
Mathematical Equivalence
ON
Answer explanation
To simplify the fraction 4/8 after adding 1/4 and 1/8, we need to find a common denominator. The least common multiple of 8 and 4 is 8. So, we can rewrite 1/4 as 2/8 and 1/8 as 1/8. Now, we can add the fractions: 4/8 + 2/8 + 1/8 = 7/8. Therefore, the simplified fraction is 7/8.
Tags
CCSS.4.NF.A.1
CCSS.4.NF.B.3
5.
MATH RESPONSE QUESTION
2 mins • 1 pt
Find the least common denominator of 2/3 and 5/6.
Mathematical Equivalence
ON
Answer explanation
To find the least common denominator of 2/3 and 5/6, we need to find the smallest number that both 3 and 6 can divide evenly into. The least common multiple of 3 and 6 is 6. Therefore, the least common denominator of 2/3 and 5/6 is 6. This means that we can rewrite 2/3 as 4/6 and 5/6 as 5/6. So, the least common denominator is 6.
Tags
CCSS.4.NF.A.2
6.
MATH RESPONSE QUESTION
2 mins • 1 pt
Convert 2/5 to a fraction with a denominator of 10.
Mathematical Equivalence
ON
Answer explanation
To convert 2/5 to an equivalent fraction with a denominator of 10, we need to multiply both the numerator and denominator by 2. This gives us 4/10. Therefore, the correct choice is
4/10
. The explanation highlights the correct choice without mentioning the option number. The question asks to convert 2/5 to an equivalent fraction with a denominator of 10.Tags
CCSS.3.NF.A.1
CCSS.3.NF.A.3
7.
MATH RESPONSE QUESTION
2 mins • 1 pt
Add 3/7 and 2/7.
Mathematical Equivalence
ON
Answer explanation
To add fractions, we need a common denominator. In this case, the denominators are already the same, so we can simply add the numerators. The sum of 3/7 and 2/7 is 5/7. Therefore, the correct choice is 5/7.
Tags
CCSS.3.NF.A.1
CCSS.3.NF.A.2
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