tolong jawab nomor 35

1 2/3 jam - 45 menit + 120 detik =... menit

1 2/3 jam = ... menit
= 1 2/3 = 5/3
= 5/3 x 60 = 100 menit

100 menit - 45 menit + ( 120 detik. 120:60 = 2 )

55 menit + 2 menit = 57 menit

1 2/3 = 2/3 x 60 mnt = 40 mnt
= 1 jam 40 mnt : 100 mnt
120 dtk = 2 mnt
100 mnt - 45 mnt + 2 mnt
= 57 mnt (D)