Question

Desculpem, mais uma questão a resolver​

Answer 1

1-

a) 7/3+1/6 =14/6+1/6=17/6

b) 2/5+1,7=0,4+1,7=2,1=21/10

c) 7/8-1/3 =21/24-8/24 =13/24

d) 17/6-3/2=17/6-9/6 = 8/6=4/3

e) 8/5-3/2=16/10-15/10=1/10

f) 14/5-1,4=15/5-14/10 =15/5-7/5=8/5

g)  5/6+11/3=15/18+66/18 = 81/18=9/2

2-

a) (3-1/2)*4 = =12-2 =6

b)  5-(3/2)*3 =5-9/2 =10/2-9/2=1/2

c) (3/2) / 2 +2/5 =(3/2)/(2/1) +2/5 =(3/2)*(1/2)+2/5

=3/4 +2/5 =15/20+8/20=23/20

d) (5/2)*(1/3) +2/(3/4) =5/6 +2*(4/3) =5/6+8/3

=15/18+48/18=63/18=21/6

e) 5/3 -(4/3-1/2)=5/3 -(8/6-3/6)=5/3-5/6

=10/6-5/6=5/6

f) 7/5-(3/5)/(2/3)=7/5-(3/5)*(3/2)=7/5 -9/10

=14/10-9/10 =5/10=1/2

g) 3-(2-1/3*4)=3-(2-4/3)=3-(6/3-4/3)=3-2/3

=9/3-2/3=7/3

h)(5/12)/(1/2-1/3)=(5/12)/(3/6-2/6)=(5/12)/(1/6)

=(5/12)*(6/1) =5/2

Answer 2

Resposta:

A) 14

B) $\frac{1}{2}$

C) $\frac{7}{10}$

D) $\frac{7}{2}$

E) $\frac{7}{3}$

F) $\frac{17}{20}$

G) $\frac{7}{3}$

H) $\frac{5}{72}$

Espero ter ajudado ;)