сделайте действия7 целых 3/4-(4 целых 5/6-3 целых 1/2)+1 целых 2/39 целых 2/5-(8 целых

17 3/4- (4 5/6- 3 1/2)+ 1 2/3= 8 1/12

1)) 4 5/6- 3 1/2 = 4 5/6 - 3 (13)/(23)=
4 5/6 - 3 3/6= 1 2/6= 1 1/3

2)) 7 3/4 - 1 1/3=
7 (33)/(43) - 1 (14)/(34)=
7 9/12 - 1 4/12= 6 5/12

3)) 6 5/12+ 1 2/3= 6 5/12+ 1 (24)/(34)=
6 5/12+ 1 8/12= 7 13/12= 8 1/12


29 2/5- (8 1/3- 7 1/4+ 5 1/6)= 3 3/20

1)) 8 1/3 - 7 1/4=
8 (14)/(34) - 7 (13)/(43)=
8 4/12 - 7 3/12= 1 1/12

2)) 1 1/12+ 5 1/6= 1 1/12+ 5 (12)/(62)=
1 1/12+ 5 2/12= 6 3/12= 6 1/4

3)) 9 2/5 - 6 1/4=
9 (24)/(54) - 6 (15)/(45)=
9 8/20 - 6 5/20= 3 3/20 =3,15


3 (6 5/8 - 1/2) - (5 3/4 - 2 1/6) +
(9 5/8 - 7 1/3)= 4 5/6

1)) 6 5/8 - 1/2= 6 5/8 - (14)/(24)=
6 5/8 - 4/8= 6 1/8

2)) 5 3/4 - 2 1/6=
5 (33)/(43) - 2 (12)/(62)=
5 9/12 - 2 2/12= 3 7/12

3)) 9 5/8 - 7 1/3=
9 (53)/(83) - 7 (18)/(38)=
9 15/24 - 7 8/24= 2 7/24

4)) 6 1/8 - 3 7/12=
6 (13)/(83) - 3 (72)/(122)=
6 3/24 - 3 14/24=
5 (241+3)/24 - 3 14/24=
5 27/24 - 3 14/24= 2 13/24

5)) 2 13/24 + 2 7/24= 4 20/24= 4 5/6


4 (5 1/30 - 2 3/5 - 2/15 + 6) -
(7 - 6 11/12 + 1/4)= 7 29/30

1)) 5 1/30 - 2 3/5= 5 1/30 - 2 (36)/(56)=
4 (301+1)/30 - 2 18/30=
4 31/30 - 2 18/30= 2 13/30

2)) 2 13/30 - 2/15= 2 13/30 - (22)/(152)=
2 13/30 - 4/30= 2 9/30= 2 3/10

3)) 2 3/10 + 6= 8 3/10

4)) 7 - 6 11/12= 6 12/12 - 6 11/12= 1/12

5)) 1/12+ 1/4= 1/12+ (13)/(43)=
1/12+ 3/12= 4/12= 1/3

6)) 8 3/10 - 1/3=
8 (33)/(103) - (110)/(310)=
8 9/30 - 10/30= 7 (301+9)/30 - 10/30=
7 39/30 - 10/30= 7 29/30



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17 3/4- (4 5/6- 3 1/2)+ 1 2/3=

7 3/4 - 4 5/6 + 3 1/2+ 1 2/3= 8 1/12

1)) 3 1/2+ 1 2/3=
3 (13)/(23)+ 1 (22)/(32)=
3 3/6+ 1 4/6= 4 7/6

2)) 4 7/6 - 4 5/6= 2/6= 1/3

3)) 7 3/4+ 1/3=
7 (33)/(43)+ (14)/(34)=
7 9/12+ 4/12= 7 13/12= 8 1/12


29 2/5- (8 1/3- 7 1/4+ 5 1/6)=

9 2/5 - 8 1/3 + 7 1/4 - 5 1/6=
9 2/5 + 7 1/4 - (8 1/3+ 5 1/6)= 3 3/20

1)) 9 2/5 + 7 1/4=
9 (24)/(54) + 7 (15)/(45)=
9 8/20 + 7 5/20= 16 13/20

2)) 8 1/3+ 5 1/6= 8 (12)/(32)+ 5 1/6=
8 2/6+ 5 1/6= 13 3/6= 13 1/2

3)) 16 13/20 - 13 1/2=
16 13/20 - 13 (110)/(210)=
16 13/20 - 13 10/20= 3 3/20= 3,15


3 (6 5/8 - 1/2) - (5 3/4 - 2 1/6) +
(9 5/8 - 7 1/3)=6 5/8 - 1/2 - 5 3/4 +
2 1/6 + 9 5/8 - 7 1/3= 4 5/6


1)) 6 5/8+ 9 5/8= 15 10/8= 16 2/8= 16 1/4

2)) 16 1/4 - 5 3/4= 15 (41+1)/4 - 5 3/4=
15 5/4- 5 3/4= 10 2/4= 10 1/2

3)) 10 1/2- 1/2= 10

4)) 10 + 2 1/6= 12 1/6

5)) 12 1/6 - 7 1/3=
11 (61+1)/6 - 7 (12)/(32)=
11 7/6 - 7 2/6= 4 5/6


4 (5 1/30 - 2 3/5 - 2/15 + 6) -
(7 - 6 11/12 + 1/4)=5 1/30 - 2 3/5 - 2/15 + 6 - 7 + 6 11/12 -1/4=
5 1/30+ 6+ 6 11/12 - 7 -1/4 - (2 3/5+ 2/15)= 7 29/30

1)) 5 1/30 + 6= 11 1/30

2)) 11 1/30+ 6 11/12=
11 (12)/(302) + 6 (115)/(125)=
11 2/60+ 6 55/60= 17 57/60

3)) 17 57/60 - 7= 10 57/60

4)) 10 57/60 - 1/4=
10 57/60 -(115)/(415)=
10 57/60 - 15/60=
10 42/60= 10 21/30

5)) 2 3/5+ 2/15= 2 (33)/(53) + 2/15=
2 9/15+ 2/15= 2 11/15

6)) 10 21/30 - 2 11/15=
10 21/30 - 2 (112)/(152)=
10 21/30 - 2 22/30=
9 (301+21)/30 - 2 22/30=
9 51/30 - 22/30= 9 29/30