Question

efectueaza adunarile si scaderile:18 ore 45 min+3ore50min = , 17 ore 35 min + 6 ore 25 min=,20 min 15 sec - 14 min 53 sec = ,50 min 17 sec - 23 min 48 sec =

Answer 1

Răspuns:

Explicație pas cu pas:

18 ore 45 min+3 ore 50 min = 21 ore + 95 min = 22 ore 35 min

17 ore 35 min + 6 ore 25 min = 23 ore 60 min = 24 ore

20 min 15 sec - 14 min 53 sec = 19 min 75 sec - 14 min 53 sec = 5 min 22 sec

50 min 17 sec - 23 min 48 sec = 49 min 77 sec - 23 min 48 sec = 26 min 29 sec