Question

Show your calculation and explain how the base 60 number system is used to subtract 48 minutes from 2 hour 13 minutes

Answer 1

$$2h\ 13min-48min=2h+13min-48min$$

$$=1h+60min+13min-48min$$

$$=1h+73min-48min$$

$$=1h+25min=1h\ 25min$$

 1 hour 25 minutes