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[3/4 +2/3:(3/4-1/2)]•6/41

Răspuns :

[3/4 +2/3:(3/4-1/2)]•6/41=[3/4 +2/3:(3/4-2/4)]•6/41=[3/4 +2/3:1/4]•6/41=[3/4 +8/3]•6/41=[9/12 +32/12]•6/41=41/12•6/41=6/12=1/2