Question

NHƯNG MÀ PHẢI CHIA NHA CÁC BN

Answer 1

a: 9/21=3/7

b: 33/55=3/5

c: 26/39=2/3

d: 38/57=2/3

Answer 2

a \(\dfrac{3}{7}\)

b \(\dfrac{3}{5}\)

c \(\dfrac{2}{3}\)

d \(\dfrac{2}{3}\)

Answer 3

3/7                3/5

2/3                2/3

Answer 4

Answer 5

\(\dfrac{9}{21}=\dfrac{9\div3}{21\div3}=\dfrac{3}{7}\)

\(\dfrac{33}{55}=\dfrac{33\div11}{55\div11}=\dfrac{3}{5}\)

\(\dfrac{26}{39}=\dfrac{26\div13}{39\div13}=\dfrac{2}{3}\)

\(\dfrac{38}{57}=\dfrac{38\div19}{57\div19}=\dfrac{2}{3}\)

Answer 6

a)\(\dfrac{9}{21}=\dfrac{9:3}{21:3}=\dfrac{3}{7}\)

b)\(\dfrac{33}{55}=\dfrac{33:11}{55:11}=\dfrac{3}{5}\)

c)\(\dfrac{26}{39}=\dfrac{26:13}{39:13}=\dfrac{2}{3}\)

d)\(\dfrac{38}{57}=\dfrac{38:19}{57:19}=\dfrac{2}{3}\)

Answer 7

9/21=3/7

33/55=3/5

26/39=2/3

38/57=2/3

Answer 8

a) 3/7

b) 3/5

c)2/3

d)2/3

#Chucemhoctot

Answer 9

a3/7

b3/5

c2/3

d2/3