2700 detik + 45 menit =jam Beserta caranya yg jelas

1 jam = 60 menit = 3.600 detik
1 menit = 1/60 jam
1 detik = 1/3.600 jam

2700 detik + 45 menit
= (2.700:3.600) + (45/60)
= (27/36) + 3/4
= 3/4 + 3/4
= 6/4 jam
= 3/2 jam

2700 = 45 menit

45 menit + 45 menit = 90 menit
90 menit = 1 1/2 jam