\(\dfrac{7}{22}:\dfrac{3}{11}+\dfrac{7}{22}:\dfrac{4}{11}=\dfrac{7}{22}.\dfrac{11}{3}+\dfrac{7}{22}.\dfrac{11}{4}=\dfrac{7}{22}\left(\dfrac{11}{3}+\dfrac{11}{4}\right)=\dfrac{7}{22}.\dfrac{77}{12}=\dfrac{49}{24}\)

3\22*3\11*22

=9\22*11

=9\22

11\22

=9\11

9/11 ca hai cach

=9/11

C1: 3/22 x 3/11 x 22

= 9 x 22/22 x 11 = 198/242=9/11

C2: 3/22 x 3/11 x 22

= 3 x 3 x 22/22 x 11 x 1 = 3 x 3/ 11 x 1 = 9/11

5226 dư 432

\(\dfrac{3}{22}\times\dfrac{3}{11}\times22=\dfrac{6}{11}\)

a) đ

b) s

c) đ

d) đ

Đ

S

Đ

Đ

a) đ

b) s

c) đ

d) đ

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