Question

3.2 Show your calculation and explain how 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