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Va roggg sau coroana

Va Roggg Sau Coroana class=

Răspuns :

13/4-3/2=13/4-6/4=7/4
1/3-1/6=2/6-1/6=1/6
7/4:1/6=7/4x6/1=42/4

2x1/10-6/5=21/10-6/5=21/10-12/10=9/10
9/10:3/25=9/10x25/3=225/30=45/6