1) 9 1/3 / 1 5/9-7.9

Question

1) 9 1/3 / 1 5/9-7.9

Answer 1

9 1/3 / 1 5/9 - 7.9 = 28/3 / 14/9 - 7.9 = 28/3 * 9/14 - 7.9 = 2 * 3 - 7.9 = -1.9

Comments

спосибо