Question

a)3/4+(1/5)×(3/2)=
b)1/12-(2/3)×(1/3)=
c)(8/5)×(2/3)-4/15-1/3=
d)7/10-(5/3)×(1/2)-1/2=

preciso entregar isso hj me ajudem!!

Answer 1

Oi....

Resolução:

a)

3/4 + (1/5) × (3/2)

3/4 + 3/10⇒mmc de 4,10 = 20

15 + 6/20

21/20

b)

1/12 - (2/3) × (1/3)

1/12 - 2/3 × 1/3

1/12 - 2/9⇒mmc de 12, 9 = 36

3 - 8/36

- 5/36

c)

(8/5) × (2/3) - 4/15 - 1/3

16/15 - 4/15 - 1/3

16 - 4/15 - 1/3

12/5 - 1/3⇒mmc de 5, 3 = 15

12 - 5 /15

7/15

d)

7/10 - (5/3) × (1/2) - 1/2

7/10 - 5/6 - 1/2⇒mmc de 10, 6, 2 = 30

21 - 25 - 15/30

21 - 40/30

- 19/30

Espero ter cooperado.