
Phép cộng trừ phân thức đại số
Interactive Video
•
Mathematics
•
8th Grade
•
Hard
Nguyễn Nhẫn
Used 1+ times
FREE Resource
4 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kết quả của phép tính (-3/5) + (23/5) là bao nhiêu?
20/5
4
26/5
-26/5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Để cộng hai phân thức có cùng mẫu thức, ta thực hiện như thế nào?
Cộng tử và giữ nguyên mẫu.
Giữ nguyên tử và cộng mẫu.
Cộng tử và cộng mẫu.
Nhân tử và giữ nguyên mẫu.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kết quả rút gọn của phép tính (x - 2y) / (x^2 + xy) + (x + 2y) / (x^2 + xy) là gì?
2x / (x^2 + xy)
2 / (x + y)
2x / (x + y)
1 / (x + y)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Để cộng hai phân thức có mẫu thức khác nhau, bước đầu tiên cần làm là gì?
Quy đồng mẫu thức.
Cộng các tử số.
Rút gọn các phân thức.
Nhân các mẫu thức.
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