Ответ:
[tex] \frac{43}{21} [/tex]
Пошаговое объяснение:
[tex]5 \frac{3}{7} + ( - 3 \frac{8}{21} ) = \frac{38}{7} - \frac{71}{21} = \frac{43}{21} [/tex]
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Ответ:
[tex] \frac{43}{21} [/tex]
Пошаговое объяснение:
[tex]5 \frac{3}{7} + ( - 3 \frac{8}{21} ) = \frac{38}{7} - \frac{71}{21} = \frac{43}{21} [/tex]