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(5/3)*(8/7):(3/5)*(2/9)*(5/8)

Răspuns :

Rezultatul este 0.44091710758!
=40/21:2/3x1/8=40/21:2/24=40/21x24/2=960/42simplificam cu 2=480/21 simplif.cu 3=160/7