Помогите пожалуйста!:). Created by Iikovatanya101. matematika-ru

Помогите пожалуйста!:)...

Iikovatanya101 @Iikovatanya101

August 2022 1 6 Report

Помогите пожалуйста!:)

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zhenyaM2002

Verified answer

4 1/7 - x= 1 5/7
x= 4 1/7 - 1 5/7
x= 2 3/7
Проверим: 4 1/7 - 2 3/7 = (29- 17)/7= 12/7 = 1 5/7

3 1/8 - х= 1 5/8
х=3 1/8 - 1 5/8
х= 1 4/8
х= 1 1/2
Проверим: 3 1/8 - 1 1/2 = (25-12)/8= 13/8= 1 5/8

2 9/11 + х= 4 1/11
х= 4 1/11 - 2 9/11
х= 1 3/11
Проверим: 2 9/11 + 1 3/11 = 3 + 12/11 = 4 1 /11

6 7/8 + х = 8 1/8
х= 8 1/8 - 6 7/8
х= 1 2/8 = 1 1/4
Проверим: 6 7/8 + 1 1/4 = ( 55+10)/8 =65/8 = 8 1/8

( 6 5/8 +5 6/8 - 3 7/8) - (4 1/8 - 1 7/8 + 1 3/8)=
= 8 4/8 - 3 5/8 = 4 7/8
по действиям:
1) 6 5/8 + 5 6/8 = 11 + 11/8 = 11+ 1 3/8= 12 3/8
2) 12 3/8 - 3 7/8 = 8 4/8
3) 4 1/8 - 1 7/8 = 2 2/8
4) 2 2/8 + 1 3/8= 3 5/8
5) 8 4/8 - 3 5/8 = 4 7/8

( 5 1/20 - 1 17/20 + 19/20 ) - (3 1/20 - 15/20)=
= 4 3/20 - 2 6/20 = 1 17/20
1) 5 1/20 - 1 17/20 = 3 4/20
2) 3 4/20 + 19/20 = 3 + 23/20 = 4 3/20
3) 3 1/20 - 15/20 = ( 61-15)/20= 46/20 = 2 6/20
4) 4 3/20 - 2 6/20 = (83-46)/20= 37/20 = 1 17/20

х- 3 11/15 = 4 14/15
х= 4 14/15 +3 11/15
х= 8 10/15 = 8 2/3
проверим: 8 10/15 - 3 11/15 = ( 130-56)/15= 74/15= 4 14/15

х- 7 11/12= 6 10/12
х= 6 10/12 + 7 11/12
х= 82/12 + 95/12 = 177/12
х= 14 9/12 = 14 3/4
Проверим: 14 9/12 - 7 11/12 = (177-95)/12= 82/12= 6 10/12

3 10/11 + (х+ 7 3/11) = 20 1/11
3 10/11 + х + 7 3/11 = 20 1/11
11 2/11 +х= 20 1/11
х= 20 1/11 - 11 2/11
х= 8 10/11
проверим: 3 10 /11 + (8 10/11 +7 3/11) = 3 10/11 + 16 2/11= 20 1/11

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