(1 2/6 + 1 7/12): 1 47/54+(1 2/9-1 7/12)*5 7/13= - вопрос №222443412617121475412917125713 от polulera2005 23.10.2020 19:57

Question

Математика: (1 2/6 + 1 7/12): 1 47/54+(1 2/9-1 7/12)*5 7/13= решите ,по действиям и т.д. сразу ; )

polulera2005 · Answer

(1_2/6 + 1_7/12):1_47/54+(1_2/9-1_7/12)*5_7/13=-89/202
1 3 5 2 4

1) 1_2/6 + 1_7/12= 1_4/12 + 1_7/12 = 2_11/12
2) 1_2/9-1_7/12=1_8/36 - 1_21/36 = -13/36
3) 2_11/12 :1_47/54= 35/12 : 101/54 = (35*54) / (12*101) = 35*9 / 2*101 = 315/202
4) -13/36 * 5_7/13 = -13/36 * 72/13 = - (13*72) / (36*13) = -2
5) 315/202 -2 = -2+1_113/202 = -89/202