50:(11 8,23+5 15,23)-(6 1,5-2 3,5):9 помогите решить
= 2 46,85
1) 11 8/23 + 5 15/23= 16 23/23= 17 2) 6 1/5 - 2 3/5 = 5 6/5 - 2 3/5 = 3 3/5 3)50 : 17 = 50/17=2 16/17 4) 3 3/5 : 9 = 18/5 * 1/9 = 2/5 5) 2 16/17 - 2/5= 2 (16*5-17*2)/17*5 = 2 46/85