Question

a) 7/3 + 7/3
b) 9/2 - 5/2
c) 3/5 + 2/6
d) 4/7 - 2/8
e) 6/7 : 5/3

pf preciso urgente​

Answer 1

Resposta:

a) 7/3 + 7/3  = 14/3

b) 9/2 - 5/2  = 4/2

c) 3/5 + 2/6  = 18/30  +  10/30 = 28/30

d) 4/7 - 2/8  = 32/56  -   14/56 = 18/56

e) 6/7 : 5/3 = 6/7   .    3/5  = 18/35

Curte ai, deixa estrelas e marca como a melhor...

Answer 2

Oie, Td Bom?!

a)

= 7/3 + 7/3

= [7 + 7]/3

= 14/3

b)

= 9/2 - 5/2

= [9 - 5]/2

= 4/2

= 2

c)

= 3/5 + 2/6

= 3/5 + [2 ÷ 2]/[6 ÷ 2]

= 3/5 + 1/3 ⇐ MMC 15.

= 9/15 + 5/15

= [9 + 5]/15

= 14/15

d)

= 4/7 - 2/8

= 4/7 - [2 ÷ 2]/[8 ÷ 2]

= 4/7 - 1/4 ⇐ MMC 28.

= 16/28 - 7/28

= [16 - 7]/28

= 9/28

e)

= 6/7 ÷ 5/3

= 6/7 . 3/5

= [6 . 3]/[7 . 5]

= 18/35

Att. Makaveli1996