Question

rút gọn phân số \(\dfrac{9}{24}\)  \(\dfrac{13}{39}\)  \(\dfrac{35}{49}\)

Answer 1

\(\dfrac{9}{24}=\dfrac{9:3}{24:3}=\dfrac{3}{8}\\ \dfrac{13}{39}=\dfrac{13:13}{39:13}=\dfrac{1}{13}\\ \dfrac{35}{49}=\dfrac{35:7}{49:7}=\dfrac{5}{7}\)

Answer 2

ko bt rút à

Answer 3

9/24 = 3/8

13/39 = 1/13

35/49 = 5/7

Answer 4

\(\dfrac{9}{24}=\dfrac{9:3}{24:3}=\dfrac{3}{8}\)

\(\dfrac{13}{39}=\dfrac{13:13}{39:13}=\dfrac{1}{3}\)

\(\dfrac{35}{49}=\dfrac{35:7}{49:7}=\dfrac{5}{7}\)

 

Answer 5

3/8

1/3

5/7

Answer 6

mở SGK mà coi