Question

1/12+1/13? 1/12-1/13?

Answer 1

Ответ:

$\frac{1}{12} + \frac{1}{13} = \frac{13 + 12}{156} = \frac{25}{156}$

$\frac{1}{13} - \frac{1}{13} = \frac{13 - 12}{156} = \frac{1}{156}$