№669 A) 8/10 4/6 6/9 10/25 14/49 15/20 12/15 14/18

Question

№669 A) 8/10 4/6 6/9 10/25 14/49 15/20 12/15 14/18

Answer 1

№669 A) 4/5; 2/3; 2/3; 2/5; 2/7; 3/4; 4/5; 7/9.

Comments

№671  A) 18/20 5/10 16/12 30/20 12/9 2/6

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памаги пажалуйста 

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прашу