Question

porfavor me ajudem é pra amanhã.​

Answer 1

Resposta:

Explicação passo a passo:

57.

a.

7/3=

6/3+1/3=

2 1/3

b.

11/2=

10/2 + 1/2=

5 1/2

c.

12/5=

10/5 + 2/5=

2 2/5

58.

a.

1 1/4 + 2 1/2 =

1 1/4= 4/4+1/4=5/4

2 1/2= 4/2 + 1/2=5/2

5/4 + 5/2=

5/4 + 10/4=

15/4

b

5 1/6 + 2 2/9=

5 1/6= 30/6 + 1/6= 31/6

2 2/9 = 18/9 +2/9=20/9

31/6 + 20/9=

93/18 + 40/18=

133/18

59.

1 9/10= 10/10+9/10= 19/10

2 1/2=4/2+1/2=5/2

1 5/6= 6/6 + 5/6=11/6

19/10+5/2-11/6=

57/30 +75/30 -55/30=

132/30-55/30=

77/30