please solve this it an urgent maths question

The given magic numbers are placed in the appropriate squares, so that the sum in each row, column and diagonal is all equal as shown below.
First of all, we would rewrite all the rational numbers in their lowest forms:
Next, we would write the sum of the numbers in each row as follows:
First row: 16/19 + 9/19 + 2/19 + (-7/-19) = 34/19
Second row: (-6/-19) + (-3/-19) + 12/19 + 2/1 = 34/19
Third row: 11/19 + 14/19 + 5/19 + (-4/-19) = 34/19
Fourth row: 1/19 + (-8/-19) + 15/19 + 10/19 = 34/19
Read more on rational numbers here: https://brainly.com/question/1949413
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