помогите решить пример 4 целых 1/3 * (5/6+0.25)*3,6*(7/12+1/9)*(7/12-2/15) разделить 0,9*(5/8-1/3)*1целая5/7
4_1/3 * (5/6+0.25)*3,6*(7/12+1/9)*(7/12-2/15) /(0,9*(5/8-1/3)*1_5/7)=
=(13/3) * (5/6+0.25)*3,6*(7/12+1/9)*(7/12-2/15) /(0,9*(5/8-1/3)*(12/7))=
(13/3) * (5/6+1/4)*(18/5)*(7/12+1/9)*(7/12-2/15) /(0,9*(5/8-1/3)*(12/7))=
=(13/3) * (13/12)*(18/5)*(25/36)*(27/60) /(0,9*(7/2)*(1/7))=
=13*(13/4)*(1/4)*(1/2) /((9/10)*(7/2)*(1/7))=
=((13*13*1*1)/(4*4*2)) /((9*7*1)/(10*2*7))=
=(169/32) /(63/140)=
=(169*140)/(32*63)=
=(169*35)/(8*63)=
=(169*5)/(8*9)=
=845/72 = 11_53/72 (11 целых и 53/72)
Если задание выглядит так:
(4_1/3)/(5/6+0.25)*3,6*(7/12+1/9)*(7/12-2/15) /(0,9*(5/8-1/3)*1_5/7)=
=(13/3)/(5/6+0.25)*3,6*(7/12+1/9)*(7/12-2/15) /(0,9*(5/8-1/3)*(12/7))= 10
4 1/3 разделить (5/6+0,25) разделить (7/12-2/15)разделить0,9- 3,6 *(7/12+1/9)разделить(5/8-1/3)1 5/7
4 1/3 = 4 1/3
1 5/7 = 12/7
(13/3)/(5/6+0,25) = 4
(7/12-2/15)/0,9 = 0,5
-3,6 *(7/12+1/9) = -2,5
(5/8-1/3)*(12/7) = 0,5
4/0,5=8
-2,5/0,5 = −5
8 - 5 = 3