Question

[Hoodie Wolf]

Mọi người ơi! Giúp mk với mk đg gấp. Cảm ơn mọi người rất nhìu. Iu mọi người nhoa :))

Answer 1

[Nguyễn Lê Phước Thịnh]

a: \(\dfrac{4}{9}+\dfrac{5}{9}=\dfrac{4+5}{9}=\dfrac{9}{9}=1\)

b: \(\dfrac{2}{11}+\dfrac{6}{11}=\dfrac{2+6}{11}=\dfrac{8}{11}\)

c: \(\dfrac{31}{121}+\dfrac{19}{121}=\dfrac{31+19}{121}=\dfrac{50}{121}\)

d: \(\dfrac{7}{24}+\dfrac{5}{24}=\dfrac{7+5}{24}=\dfrac{12}{24}=\dfrac{1}{2}\)

Answer 2

[Nguyễn Thị Thương Hoài]

a; \(\dfrac{4}{9}+\dfrac{5}{9}=\dfrac{4+5}{9}=\dfrac{9}{9}=1\)

b; \(\dfrac{2}{11}+\dfrac{6}{11}=\dfrac{8}{11}\)

c; \(\dfrac{31}{121}\) + \(\dfrac{19}{121}\) = \(\dfrac{31+19}{121}\) = \(\dfrac{50}{121}\)

d; \(\dfrac{7}{24}+\dfrac{5}{24}=\dfrac{12}{24}=\dfrac{1}{2}\)