4 5/9-1 1/4-3 5/4+1 1/9
Решите удобным

1) 3 3/23 * 23/27 = 72/23* 23/27= 72/27 = 24/9 = 8/3

2) 1 1/5 * 1/6 = 6/5 * 1/6 = 1/5

3) 14 7/15 - 8/3 = 217/15 - 8/3 = 217/15 - 40/15 = 177/15

4) 177/15 - 1/5 = 177/15 - 3/15 = 174/15 = 11  9/15 = 11  3/5

Пошаговое объяснение:

:)