Question

1) Resolva

A) 9/8 - 4/6 =

B) 7/2 + 2/5 - 2/4 =

C) 9/6 + 5/3 - 6/8 =

D) 9/4 + 5/6 + 8/3 =

E) 7/8 + 8/3 + 5/6 =

Answer 1

Olá, boa noite ☺

Resoluções:

a)

9/8 - 4/6

m.m.c.(6,8)=24

(27-16)/24=11/24

b)

7/2 + 2/5 - 2/4

m.m.c.(2,4,5)=20

(70+8-10)/20=68/20 : 4/4 = 17/5

c)

9/6 + 5/3 - 6/8

m.m.c.(3,6,8)=24

(36+40-18)/24=58/24 : 2/2=29/12

d)

9/4 + 5/6 + 8/3

m.m.c.(3,4,5)=60

(135+50+160)/60=345/60 : 15/15 = 23/4

e)

7/8 + 8/3 + 5/6

m.m.c.(3,6,8)=24

(21+64+20)/24=105/24 : 3/3 = 35/8

Bons estudos :)