70 minggu - 2 semester = .... bulan

1 bulan = 4 minggu
1 minggu = 1/4 bulan
1 semester = 6 bulan

70 minggu
= 70 x 1/4 bulan
= 17.5 bulan

2 semester
= 2 x 6 bulan
= 12 bulan

70 minggu - 2 semester = ...... bulan

17.5 bulan - 12 bulan = 5.5 bulan