Question

NAO TEM CONTEUDO
1)Calcule

a)2/5+1/8+3/4=

b)1/3+7/9-5/6=

c)6/1×3/4=

d)5/7×9/2=

e)1/8×14/1=

f)2/3×5/7

g)6/7×3/1×9/5=

h)8/1×5/4×2/1=

i)7/1÷1/3=

j)10/9÷5/1=

k)8/5÷2/15=

l)2/5÷6/7=

m)2/1÷4/5=

2)Resolva as experessoes com fraçao

a)6/7×1/3+9/4÷3/2-5/14=

b)4/3+6/5×5/9+1/4÷3/8=

Answer 1

a) 16+5+30/40= 51/40
b) 6+14-15/18= 5/18
c) (18/4)÷2= 9/2
d) 45/14
e) (14/8) ÷2 =7/4
f) 10/21
g) 18/7 x 9/5= 162/35
h) 40/4 x 2/1= (80/4)÷2= 40/2
i) 7/1 x 3/1= 21/1
j) 10/9 x 1/5= 10/45
k) 8/5 x 15/2= (120/10)÷10= 12/1
l) 2/5 x 7/6= (14/30)÷2= 7/15
m) 2/1 x 5/4= 10/4

2.a) 6/21 + 18/12 - 5/14=
24 + 56 - 30/ 84=
80-30/84=
50/84

b) 4/3 + 30/45 + 8/12=
120+60+60/90=
(240/90)÷2=
(120/45)÷3=
40/15

Answer 2

Como já passaste muito tempo, creio que já sabe a resposta