Question

Efetue as divisões por favor é para hoje!!!

A - 1/6 ÷ 3/5

B - 3/4 ÷ 2/9

C- 1/2 ÷ 1/4

D- 1 ÷ 1/3=

E- 3 ÷ 1/4=

F- 1/5 ÷ 8

G- 12 ÷ 3/2

H- 20 ÷ 4/5

I- 3/2 ÷ 9/4

J- 2 1/3 ÷ 4 2/6

Gente por favor me ajuda é para hoje!!!!!

Answer 1

Respostas:

A) 5/18

B) 27/8

C) 2

D) 3

E) 12

F) 1/40

G) 8

H) 25

I) 2/3

J) 1

Explicações passo-a-passo:

A) 1/6 ÷ 3/5

= 1/6 Cruza 5/3

= 1 X 5/ 6 X 3

= 5/6 X 3

= 5/18

B) 3/4 ÷ 2/9

= 3/4 Cruza 9/2

= 3 X 9/4 X 2

= 27/4 X 2

= 27/8

C) 1/2 ÷ 1/4

= 1/2 Cruza 4/1

= 2/1

= 2

D) 1 ÷ 1/3

= 1/1 ÷ 1/3

= 1/1 Cruza 1/3

= 1/1 = 1 ------- 1 X 3/1

= 1 X 3

= 3

E) 3 ÷ 1/4

= 3/1 ÷ 1/4

= 3/1 Cruza 4/1

= 3 X 4

= 12

F) 1/5 ÷ 8

= 1/5 ÷ 8/1

= 1/5 Cruza 1/8

= 1 X 1/ 5 X 8

= 1/5 X 8

= 1/40

G) 12 ÷ 3/2

= 12/1 ÷ 3/2

= 12/1 Cruza 2/3

= 4/1 X 2/1

= 4 X 2/ 1 X 1

= 8/1

= 8

H) 20 ÷ 4/5

= 20/1 ÷ 4/5

= 20/1 Cruza 5/4

= 5/1 X 5/1

= 25/1

= 25

I) 3/2 ÷ 9/4

= 3/2 Cruza 4/9

= 3 X 4/ 2 X 9

= 12/18

= 2/3

J) 21/3 ÷ 42/6

= 21/3 Cruza 6/42

= 21/3 = 7 ----- 7 X 6/42

= 6/43 = 1/7

= 7 X 1/7

= 7/1 X 1/7

= 1

Answer 2

divisão de frações: repita a primeira e multiplique pelo inverso da segunda

a) 1/6 : 3/5 = 1/6 . 5/3 = 5/18
b) 3/4 : 2/9 = 3/4 . 9/2 = 27/8
c) 1/2 : 1/4 = 1/2 . 4 = 4/2 = 2
d) 1 : 1/3 = 1 . 3 = 3
e) 3 : 1/4 = 3 . 4 = 12
f) 1/5 : 8 = 1/5 . 1/8 = 1/40
g) 12 : 3/2 = 12 . 2/3 = 24/3 = 8
h) 20 : 4/5 = 20 . 5/4 = 100/4 = 25
i) 3/2 : 9/4 = 3/2 . 4/9 = 12/18 = 2/3
j) 2 1/3 : 4 2/6 = 7/3 : 26/6 = 7/3 : 13/3 = 7/3 . 3/13 = 21/39 = 7/13

espero ter ajudado :)
bons estudos