811/18+(4 5/9 -1 7/18*2, 4 ) по действиям

8 11/18+(4 5/9 -1 7/18*2, 4 )

1) 1 7/18*2,4 = 25/18 * 24/10=5*3/4*2= 15/8=1 7/8
2) 4 5/9 - 1 7/8= 4 40/72 - 1 63/72= 3 112/72 - 1 63/72= 2 49/72
3) 8 11/18 + 2 49/72= 8 44/72 + 2 49/72= 10 93/72= 11 21/72= 11 7/24