Решить пример (5 4/9 -(2 1/3)(в квадрате тоесть степень на 2))*8 1/4 *1 3/20+ 12*1/3*3 3/4*1 1/5-4/17*0*5 18/19

Выражение: (54/9-(21/3)^2)*81/4*13/20+12*1/3*33/4*11/5-4/17*0*518/19

ответ: -(39471//80)

Решаем по действиям:
1. 54/9=6
54|9_ _
5_4_|6
0
2. 21/3=7
21|3_ _
2_1_|7
0
3. 7^2=49
X7
_7_
49
4. 6-49=-43
-49
_ _6_
-43
5. (-43)*81=-43*81
6. 43*81=3483
X43
_ _8_1_
43
3_4_4_ _
3483
7. 3483/4=870.75
3483|4_ _
3_2_ |870.75
28
2_8_
030
2_8_
20
2_0_
0
8. (-870.75)*13=-870.75*13
9. 870.75*13=11319.75
X870.75
_ _ _ _ _1_3_ _
261225
_8_7_0_7_5_ _ _
11319.75
10. 11319.75/20=(45279//80)
11. 12/3=4
12|3_ _
1_2_|4
0
12. 4*33=132
X33
_ _4_
132
13. 132/4=33
132|4_ _
1_2_ |33
12
1_2_
0
14. 33*11=363
X33
_1_1_
33
3_3_ _
363
15. 363/5=72.6
363|5_ _
3_5_ |72.6
13
1_0_
30
3_0_
0
16. -(45279//80)+72.6=-(39471//80)
17. 4/17=(4//17)
18. (4//17)*0=0
19. 0*518=0
X518
___ ___ ___ ___0___
0
20. 0/19=0

Решаем по шагам:
1. (6-(21/3)^2)*81/4*13/20+12/3*33/4*11/5-4/17*0*518/19
1.1. 54/9=6
54|9_ _
5_4_|6
0
2. (6-7^2)*81/4*13/20+12/3*33/4*11/5-4/17*0*518/19
2.1. 21/3=7
21|3_ _
2_1_|7
0
3. (6-49)*81/4*13/20+12/3*33/4*11/5-4/17*0*518/19
3.1. 7^2=49
X7
_7_
49
4. (-43)*81/4*13/20+12/3*33/4*11/5-4/17*0*518/19
4.1. 6-49=-43
-49
_ _6_
-43
5. (-43*81/4)*13/20+12/3*33/4*11/5-4/17*0*518/19
5.1. (-43)*81=-43*81
6. (-3483/4)*13/20+12/3*33/4*11/5-4/17*0*518/19
6.1. 43*81=3483
X43
_ _8_1_
43
3_4_4_ _
3483
7. (-870.75)*13/20+12/3*33/4*11/5-4/17*0*518/19
7.1. 3483/4=870.75
3483|4_ _
3_2_ |870.75
28
2_8_
030
2_8_
20
2_0_
0
8. -870.75*13/20+12/3*33/4*11/5-4/17*0*518/19
8.1. (-870.75)*13=-870.75*13
9. -11319.75/20+12/3*33/4*11/5-4/17*0*518/19
9.1. 870.75*13=11319.75
X870.75
_ _ _ _ _1_3_ _
261225
_8_7_0_7_5_ _ _
11319.75
10. -(45279//80)+12/3*33/4*11/5-4/17*0*518/19
10.1. 11319.75/20=(45279//80)
11. -(45279//80)+4*33/4*11/5-4/17*0*518/19
11.1. 12/3=4
12|3_ _
1_2_|4
0
12. -(45279//80)+132/4*11/5-4/17*0*518/19
12.1. 4*33=132
X33
_ _4_
132
13. -(45279//80)+33*11/5-4/17*0*518/19
13.1. 132/4=33
132|4_ _
1_2_ |33
12
1_2_
0
14. -(45279//80)+363/5-4/17*0*518/19
14.1. 33*11=363
X33
_1_1_
33
3_3_ _
363
15. -(45279//80)+72.6-4/17*0*518/19
15.1. 363/5=72.6
363|5_ _
3_5_ |72.6
13
1_0_
30
3_0_
0
16. -(39471//80)-4/17*0*518/19
16.1. -(45279//80)+72.6=-(39471//80)
17. -(39471//80)-(4//17)*0*518/19
17.1. 4/17=(4//17)
18. -(39471//80)-0*518/19
18.1. (4//17)*0=0
19. -(39471//80)-0/19
19.1. 0*518=0
X518
___ ___ ___ ___0___
0
20. -(39471//80)
20.1. 0/19=0

Приводим к окончательному ответу с возможной потерей точности:

Окончательный ответ: -493.3875

По действиям:
1. 39471//80=493.3875
39471|8_0_ _
3_2_0_ |493.3875
747
7_2_0_
271
2_4_0_
310
2_4_0_
700
6_4_0_
600
5_6_0_
400
4_0_0_
0

По шагам:
1. -493.3875
1.1. 39471//80=493.3875
39471|8_0_ _
3_2_0_ |493.3875
747
7_2_0_
271
2_4_0_
310
2_4_0_
700
6_4_0_
600
5_6_0_
400
4_0_0_
0