a girl spent 1/5 of her pocket money on sweets and 2/3 on toys. what fraction of her money did she spent? what fraction has she left
what fraction of her money did she spent?
13/15
what fraction has she left?
2/15
LCM of 3 & 4 = 12
1/3 = 4/12 -> sleeping
1/4 = 3/12 -> reading
time spent for reading and sleeping
4/12 + 3/12 = 7/12
time spent for sleeping
12/12 - 7/12 = 5/12