Question

como eu resolvo essa conta ¼ 0,19:(4-0,8:0,5-1/2)

Answer 1

(1/4 . 19/100) : ( 4 - 8/10 . 10/5 - 1/2)
(19/400) : ( 4 -8/5 - 1/2)
19/400 : (40 - 16  - 5) /10

19/400 : 19/10
19/400 . 10/19

= 1/40