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Cel putin cate o fractie egala cu : 1 supra 2. 2 supra 4. 5 supra 10 . 3 supra 9.

Răspuns :

1/2=2/4
2/4=1/2
5/10=10/20
3/9=1/3
1 supra 2 = 100/200 ; 10/20, 2/4
2 supra 4= 20/40 ; 4/8; 
5 supra 10= 50/100; 25/20
3 supra 9= 30/90 ; 9/18,