Question

8) Efetue:
a)2/3 + 3/4
c) 4/7 8/9 =
b) 3/2-2/3
d) 7/9: 6/5=​

Answer 1

Resposta:

a) 17

12

b) 32

63

c) 5

6

d) 35

54

Explicação passo-a-passo:

a) 2/3+3/4=

(2×4= 8) + (3×3=9)

(3×4=12) (4×3=12)

8+9 = 17

12 12

b) 4/7×8/9=

4×8 = 32

7×9= 63

c) 3/2-2/3

(3×3=9) - (2×2=4)

(2×3=6) (3×2=6)

9-4= 5

6 6

d) 7÷6=

9 5

7×5= 35

9×6= 54