i estimate that i need 60 litres of lemonade, i buy 24 bottles each one contains 2 3/4. have i brought enough ?
24 * ( 2 + 3/4) =
24 * ( 11/4) =
(24 / 1) * (11/4) =
(24 / 4) * (11 / 1) =
6 * 11 =
66
You have enough !!!