Question

Simon makes 30 cakes

He gives 1/5 to sali
he gives 10% of the 30 cakes to jane

what fraction of the 30 cakes does he have left

Answer 1

21

Explanation:

10% of 30 is 3 then 1/5 of 30 is 6 so 3+6=9 then 30-9=21