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149 supra 135 + 192 supra 189

Răspuns :

[tex] \frac{149}{135} + \frac{192}{189} = \frac{149 \times 7}{135 \times 7} + \frac{192 \times 5}{189 \times 5} = \frac{1043}{945} + \frac{960}{945} = \frac{1043 + 960}{945} = \frac{2003}{945} = 2 \frac{113}{945} [/tex]