Question

a)-5/3+3/4=
b)-2/5-7/3=
c)6,35-3,2=
d)-2,65-0,34=
e)4,5-2/5=

com armação da conta
pfv mi ajudemm​

Answer 1

Resposta:

Explicação passo-a-passo:

8b3e56df16db2ae5a7857c58572e3463.pdf

Answer 2

Resposta:

Explicação passo-a-passo:

A)-5/3+3/4=

Mmc 3,4=12

= (-4.5 + 3.3)/12

=(-20+9)/12

= -11/12

R.: -11/12

_______

b)-2/5-7/3=

Mmc 3,5= 15

= [3.(-2) - 5.7]/15

= (-6-35)/15

= - 41/15

R.: - 41/15

---------------

c)6,35-3,2= 3,15

6,35

-3,20

---------

3,15

R.: 3,15

________

d)-2,65-0,34= - 2,99

2,65

0,34

--------

2,99

R.: -2,99

_______

e)4,5-2/5=

= 45/10 (:5)/(:5) - 2/5

= 9/2 - 2/5

= (5.9-2.2)/10

= (45-4)/10

=41/10

= 4,1

R.: 4,1