Question

Check in the following square, whether in this square the sum of the numbers in each row
and in each column and along the diagonals is the same.
​

Answer 1

Answer:

36/169,169/169,4/169

9/169,49/169,121/169

144/169,1/169,64/169

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Answer 2

$\frac{6}{13} + \frac{13}{13} + \frac{2}{13} \\ \\ = \frac{6 + 13 + 2}{13} \\ \\ = \frac{21}{13}$

$\frac{3}{13} + \frac{7}{13} + \frac{11}{13} \\ \\ = \frac{3 + 7 + 11}{13} \\ \\ = \frac{21}{13}$

$\frac{12}{13} + \frac{1}{13} + \frac{8}{13} \\ \\ = \frac{12 + 8 + 1}{13} \\ \\ = \frac{21}{13}$

$\frac{3}{13} + \frac{6}{13} + \frac{12}{13} \\ \\ = \frac{3 + 6 + 12}{13} \\ \\ = \frac{21}{13}$

$\frac{13}{13} + \frac{7}{13} + \frac{1}{13} \\ \\ = \frac{13 + 7 + 1}{13} \\ \\ = \frac{21}{13}$

$\frac{2}{13} + \frac{8}{13} + \frac{11}{13} \\ \\ = \frac{2 + 8 + 11}{13} \\ \\ = \frac{21}{13}$

$\frac{6}{13} + \frac{7}{13} + \frac{8}{13} \\ \\ = \frac{6 + 7 + 8}{13} \\ \\ = \frac{21}{13}$

$\frac{2}{13} + \frac{7}{13} + \frac{12}{13} \\ \\ = \frac{2 + 7 + 12}{13} \\ \\ = \frac{21}{13}$

Checked,

the sum of the numbers in each row

and in each column and along the diagonals is the same.