Question

[Sách Giáo Khoa]

Quy đồng mẫu thức các phân thức sau :

a) \(\dfrac{25}{14x^2y};\dfrac{14}{21xy^5}\)

b) \(\dfrac{11}{102x^4y};\dfrac{3}{34xy^3}\)

c) \(\dfrac{3x+1}{12xy^4};\dfrac{y-2}{9x^2y^3}\)

d) \(\dfrac{1}{6x^3y^2};\dfrac{x+1}{9x^2y^4};\dfrac{x-1}{4xy^3}\)

e) \(\dfrac{3+2x}{10x^4y};\dfrac{5}{8x^2y^2};\dfrac{2}{3xy^5}\)

f) \(\dfrac{4x-4}{2x\left(x+3\right)};\dfrac{x-3}{3x\left(x+1\right)}\)

g) \(\dfrac{2x}{\left(x+2\right)^3};\dfrac{x-2}{2x\left(x+2\right)^2}\)

h) \(\dfrac{5}{3x^3-12x};\dfrac{3}{\left(2x+4\right)\left(x+3\right)}\)

Answer 1

[Nguyen Thuy Hoa]