Below is an instruction that describes a task. Write a response that appropriately completes the request in Swahili. Please answer in Swahili.

### Instruction:
Hershel has 10 betta fish and 15 goldfish in a bowl. His friend Bexley brings him 2/5 times as many betta fish and 1/3 times as many goldfish. If Hershel gifts his sister 1/2 of the fish, calculate the total number of fish he has remaining in the bowl.

### Response:
 Idadi jumla ya samaki ambao Bexley anamletea Hershel katika bakuli la samaki wa betta ni 2/5*10 = <<2/5*10=4>>4 samaki wa betta.
Idadi jumla ya samaki wa betta katika bakuli sasa ni 4+10 = <<4+10=14>>14
Pia anamletea samaki wa dhahabu 1/3*15 = <<1/3*15=5>>5 samaki wa dhahabu.
Idadi jumla ya samaki wa dhahabu katika bakuli sasa ni 15+5= 20
Katika bakuli, kuna jumla ya samaki 14+20 = <<14+20=34>>34
Anapompa dada yake nusu ya samaki, waliobaki ni 1/2*34 = <<34/2=17>>17 samaki