22/11*4,125+1,6*3 3/4 9-5 5/6*2 4/7

1) - 2 2/11 • 4,125 = - 24/11 • 33/8 = - 9
2) 1,6 • 3 3/4 = 1,6 • 3,75 = 6
3) - 9 + 6 = - 3
4) 5 5/6 • 2 4/7 = 35/6 • 18/7 = 15
5) 9 - 15 = - 6
6) - 3 : ( - 6 ) = 0,5
ответ 0,5