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Calculează media generala a 4supra21si 7supra3​

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1DianaMaria3ask

[tex] \huge = \frac{ \frac{4}{21} + { }^{7)} \frac{7}{3} }{2} = \frac{ \frac{4}{21} + \frac{49}{21} }{2} = \\ \\ \huge= \frac{ \frac{4 + 49}{21} }{2} = \frac{51}{21 \times 2} = \frac{51}{42} [/tex]

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