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Cat este [12+3×(16:f:4)×3]:7:3​

Răspuns :

(12+3•(16/f:4)•3):7:3=
(12+3•(16/f•1/4)•3):7:3=
(12+3•(16/f•1/4)•3)•1/7:3=
(12+3•16/f•1/4)•3)•1/7•1/3=
(12+3•4/f•3)•1/7•1/3=
(12+36/f)•1/7•1/3=
12f+36/f•1/7•1/3=
3(4f+12)/f•1/7•1/3=
4f+12/f•1/7=4f+12/7f