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

### Instruction:
 Archibald na ndugu yake wanacheza tennis dhidi ya kila mmoja. Archibald ameshinda michezo 12 na ndugu yake ameshinda michezo 18. Asilimia ngapi ya michezo ameshinda Archibald?


### Response:
 Wamecheza jumla ya michezo 30 kwa sababu 12 + 18 = <<12+18=30>>30
Uwiano wa michezo aliyoishinda Archibald ni .4 kwa sababu 12 / 30 = <<12/30=.4>>.4
Asilimia aliyoshinda ni 40% kwa sababu .4 x 100% = 40%