Benson spends 1/5 of his pocket money on transport and 2/3 on food. (i)What fraction of his pocket money did he spend on transport and food?
(ii)What is the fraction left?
x = his pocket money
He spent x / 5 of the money on transportation and 2 x / 3 of food.
Totaly he spent:
x / 5 + 2 x / 3 = 3 x / 15 + 10 x / 15 =
13 x / 15
x - 13 x / 15 =
15 x / 15 - 13 x / 15 = 2 x / 15
2 / 15 of his pocket money left