Question

Calcule em QUE:

a) 4/5 x 130/40

b) 2/45 - 57/9

c) 4/7 ÷ 8/31

d) 0,8 ÷ 0,444...

e) 0,812... + 0,413413413....


PRECISO DOS CÁLCULOS

Answer 1

Resposta:

A)4/5 x 130/40

4x26/40

26/10

13/5

B)2/45-57/9

2145/1 57/5

2145x5/1x5 57/5

10725/1x5-57/5

10725/5-57/5

10725-57

________

5

10668/5.

c)4/7÷8/31

4/7x31/8

4/7 x 31/8

1/7x31/2

1x31/7x2

31/7x2

31/14.

D)0,8÷0,444...

0,8

8/10

4/5÷0,444

4/5÷111/250

4/5 x 250/111

4x50/111

4/1 x 50/111

4/1 x 50/111

4x 50/1x111

200/11x111

200/111.

e)0,812...+0,413413413...

¹0.812000000

+0.413413413

___________

1.225413413.

espero ter ajudado.