Question

14.400 detik - 25 menit -0,25=....jam

Answer 1

14.400 detik÷60=240 menit÷60= 4 jam
25 menit=0.41 jam
0.25 jam
=4-(0.41+0.25)=4 jam-0.66 jam= 3 jam 34menit

Answer 2

14.400 detik - 25 menit - 0,25 jam
= (14.400:3600) jam - (25:60) jam - 0,25
= 4 jam - 5/12 jam - 25/60
= 48/12 - 5/12 - 5/12
= 38/12 jam atau 3 jam lebih 2 menit