Empat satu per enam jam=

4 1/6 Jam
25/6 × 60 = 250 menit

4 1/6 jam =
= 4 jam = 240 menit
= 1/6 jam = 60/6 jam = 10 menit
240 menit + 10 menit = 250 menit
Semoga membantu