решите пожалуйста 559 (2,3). Created by 1Умник. matematika-ru

решите пожалуйста 559 (2,3)...

1Умник @1Умник

October 2021 1 5 Report

решите пожалуйста 559 (2,3)

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fanta2310

Verified answer

2/3
-------------------------- + 1/3 = 7/9
5/6х - 1/6

2/3
------------------ = 7/9 - 1/3
5/6х - 1/6

2/3
------------------ = 7/9 - 3/9
5/6х - 1/6

2/3
------------------ = 4/9
5/6х - 1/6

5/6х - 1/6 = 2/3 : 4/9
5/6х - 1/6 = 2/3 * 9/4
5/6х - 1/6 = 1/1 * 3/2
5/6х - 1/6 = 3/2
5/6х = 3/2 + 1/6
5/6х = 9/6 + 1/6
5/6х = 10/6
х = 10/6 : 5/6
х = 10/6 * 6/5
х = 10/5
х = 2


3/4
----------------------- - 1/2 = 5/14
1/8х + 3/8

3/4
-------------------- = 5/14 + 1/2
  1/8х + 3/8

3/4
----------------- = 5/14 + 7/14
1/8х + 3/8

3/4
------------------ = 12/14
1/8х + 3/8

3/4
------------------- = 6/7
1/8х + 3/8

1/8х + 3/8 = 6/7 : 3/4
1/8х + 3/8 = 6/7 * 4/3
1/8х + 3/8 = 2/7 * 4/1
1/8х + 3/8 = 8/7
1/8х = 8/7 - 3/8
1/8х = 64/56 - 21/56
1/8х = 43/56
х = 43/56 : 1/8
х = 43/56 * 8/1
х = 43/7 * 1/1
х = 43/7
х = 6 1/7

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