Question

7/19-28/343
Расписано плз

Answer 1

Объяснение:

7/19-28/343=(2401-532)/6517=

=1869/6517=267/931

Answer 2

$\dfrac{7}{19} - \dfrac{28}{343} = \dfrac{7}{19} - \dfrac{4}{49} = \dfrac{343 - 76}{931} = \dfrac{267}{931} .$