Question

calcule
8/9 . 4/3 =
12/15 : 3/5 =
2,3 + 12/10 =
1/4 - 1/5 =

Answer 1

Explicação passo-a-passo:

8/9 . 4/3=

8×4

____=

9×3

32/27

12/15 : 3/5=

12/15 × 5/3=

12×5

____=

15×3

60/45

2,3 + 12/10=

23/10 + 12/10=

35/10

ou

3,5

1/4 - 1/5=

5 - 4

_____=

20

1/20