Thử thách phân số
Quiz
•
Mathematics
•
5th Grade
•
Practice Problem
•
Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
An và Khánh đang làm bài tập toán cùng nhau. Họ cần giải quyết bài toán thú vị này: 1/2 + 1/3 là bao nhiêu?
5/6
2/5
3/4
1/4
Answer explanation
To add 1/2 and 1/3, find a common denominator, which is 6. Convert 1/2 to 3/6 and 1/3 to 2/6. Now, add them: 3/6 + 2/6 = 5/6. Thus, the correct answer is 5/6.
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Arjun và Ethan đang có một cuộc thi toán thân thiện! Bạn có thể giúp họ giải bài này: 3/4 - 1/8 = ?
7/8
3/8
1/2
5/8
Answer explanation
To solve 3/4 - 1/8, first convert 3/4 to eighths: 3/4 = 6/8. Then, subtract: 6/8 - 1/8 = 5/8. Thus, the correct answer is 5/8.
3.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Maya và Evelyn đang có một cuộc thi toán học thân thiện! Bạn có thể giúp họ giải quyết điều này: 2/5 x 3/10 là bao nhiêu?
1/10
3/25
4/15
6/25
Answer explanation
To multiply fractions, multiply the numerators and the denominators: (2 x 3) / (5 x 10) = 6 / 50. Simplifying 6/50 gives 3/25, which is the correct answer.
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Zoe và Benjamin đang có một cuộc thi toán học thân thiện! Bạn có thể giúp họ giải quyết thử thách này không? 5/6 ÷ 2/3 = ?
3/4
1/2
2/5
5/4
Answer explanation
To divide fractions, multiply by the reciprocal. Thus, 5/6 ÷ 2/3 = 5/6 × 3/2 = (5×3)/(6×2) = 15/12 = 5/4. Therefore, the correct answer is 5/4.
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Anika và Aria đang có một cuộc thi toán thân thiện! Bạn có thể giúp họ giải bài này: 1/4 + 2/5 = ?
7/20
13/20
1/2
3/10
Answer explanation
To add 1/4 and 2/5, find a common denominator, which is 20. Convert 1/4 to 5/20 and 2/5 to 8/20. Then, 5/20 + 8/20 = 13/20. Thus, the correct answer is 13/20.
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Jackson và Abigail đang có một cuộc thi toán học thân thiện! Bạn có thể giúp họ giải bài này: 3/8 - 1/2 = ?
-1/4
1/8
-1/8
3/8
Answer explanation
To solve 3/8 - 1/2, convert 1/2 to 4/8. Then, 3/8 - 4/8 = -1/8. Thus, the correct answer is -1/8.
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Vào một ngày nắng đẹp, Benjamin và Lily quyết định cùng nhau giải một bài toán thú vị. Họ gặp phải thử thách này: 7/10 nhân với 2/3 là bao nhiêu?
14/30
7/15
7/12
1/5
Answer explanation
To multiply fractions, multiply the numerators and the denominators: (7 x 2) / (10 x 3) = 14/30. Simplifying 14/30 by dividing both by 2 gives 7/15, which is the correct answer.
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