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pentru fiecare caz,incercuieste fractia egala cu cea data.-fractia data 2/5 = 1/2;4/10;2/4 , fractia data-3/9 = 2/4 ;3/6 ; 1/3 , -fractia data- 2/8 = 4/10 ; 1/4 ; 8/2 ,fractia data 4/6= 2/4 ; 2/3 ; 1/2.

Răspuns :

2/5=4/10
3/9=1/3
2/8=1/4
4/6=2/3