Question

A) 2/5 : 7/11 =

B) 12/17 + 4/5 =

C) 6/11 - 4/13 =

D) 5/6 + 4/7 x 2/3 =

Answer 1

Nhanh nhanh giúp mik dc ko cả nhà?

Answer 2

a: =2/5x11/7=22/35

b: =60/85+68/85=128/75

c: =78/143-44/143=34/143

d: =5/6+8/21=35/42+16/42=51/42=17/14

Answer 3

A) 2/5 : 7/11 = 2/5 x 11/7 = 22/35

B) 12/17 + 4/5 = 128/85

C) 6/11 - 4/13 = 34/143

D) 5/6 + 4/7 x 2/3 = 5/6 + 8/21=  17/14

Answer 4

a ) 22/35

b ) 128/85

c ) 34/143

d ) 17/14

Answer 5

a) 22/35

b)128/85

c)34/143

d)17/14

Answer 6

22/35
128/85
34/143
17/14

Answer 7

a) \(\dfrac{2}{5}:\dfrac{7}{11}=\dfrac{2}{5}\times\dfrac{11}{7}=\dfrac{22}{35}\)

b) \(\dfrac{12}{17}+\dfrac{4}{5}=\dfrac{60}{85}+\dfrac{68}{85}=\dfrac{128}{85}\)

c) \(\dfrac{6}{11}-\dfrac{4}{13}=\dfrac{78}{143}-\dfrac{44}{143}=\dfrac{34}{143}\)

d) \(\dfrac{5}{6}+\dfrac{4}{7}\times\dfrac{2}{3}=\dfrac{5}{6}+\dfrac{8}{21}=\dfrac{35}{42}+\dfrac{16}{42}=\dfrac{51}{42}=\dfrac{17}{14}\)