Question

Ajutooooor! urgent
$\frac{280}{1} - \frac{5}{13}$
$\frac{39}{7} - \frac{1}{9}$

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Answer 1

Răspuns:

$\frac{280}{1} - \frac{5}{13} = \frac{3640 - 5}{13} = \frac{3635}{13}$

$\frac{39}{7} - \frac{1}{9} = \frac{351 - 7}{63} = \frac{344}{63}$