Question

2- Efetue as operações envolvendo números racionais na forma
fracionária.
a) −
3
7
+
1
3
=
b) (−
5
6
) ∙ (+
2
5
) =

c) (−
3
10) − (+
1
4
) =

d) (−
3
8
) ÷ (+
2
5
) =

e) (−
3
4
)
2
=
f) (−
5
3
) : (−2) =
g) (−
1
2
)
5
=
h) (−2) +
6
5
=

i) −
1
2
−
2
3
+
5
6
=

j) (−
1
3
) ÷ (−
2
9
+
1
6
) =

k) [(+
1
2
) ÷ (+2)]
3
=

l) (−
3
4
) − (−
1
2
) ∙ (+
1
2
) =

m) (−
3
8
) − (+
2
5
) : (−
1
2
) =

Answer 1

Resposta:

(-37)+13=(-24)

(−56) ×25= (-1,400)

(−310) −14=(−324)

(−38) ÷ 25=(−1.52)

(−34)×2=(-68)

(−53) : (−2)=26.5

(−12)×5=(-60)

(−2) +65=63

(−12)−23+56=21

(−13) ÷ (−29+16)=1

[12 ÷ 2]×3=18

(−34) − (−12) × 12=110

(−38) − 25 ÷ (−12)=−40.0833333333

Explicação passo a passo:

Espero ter ajudado