Question

-4 upon 3 + 3 upon 7​

Answer 1

${ - 4}^{3} + {3}^{7}$

$- 64 + 2187$

$2123$

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Answer 2

$= \frac{ - 4}{3} + \frac{3}{7}$

$= \frac{ - 28 + 9}{21}$

$= \: \frac{ - 19}{21}$