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dau coroana!! rapidd


Dau Coroana Rapidd class=

Răspuns :

Hai, salut!

x/y = 5/13 => x = 5k, y = 13k

a) x+y/y = 18k/13k = 18/13

b) x/x+y =5k/18k = 5/18

c) y-x/x = 8k/5k = 8/5

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