Answer:
21/30 cakes
Explanation:
1/5 of 30 is 6 i.e he gives 6 cakes to sali then 10% of 30 is 3 i.e he gives 3 cakes to jane
so he has given a total of 9 cakes of 30 cakes
now the fraction of cakes he has is 21/30
i hope it helps , i will always be there if you need my help