- 7 i 7/9 - 1 i 7/12 = 3 i 11/12 - 5 i 7/9 =- 2 5/12 + 5 i 7/8 =Pliss. Pomóżcie dam Naaj. ; ].
- 7 7/9 - 1 7/12 = - 7 28/36 - 1 21/36 = - ( 7 28/36 + 1 21/36) = - 8 49/36 =
= - 9 13/36
=============
3 11/12 - 5 7/9 = 3 33/36 - 5 28/36 = - ( 5 28/36 - 3 33/36 ) =
= - ( 4 64/36 - 3 33/36) = - 1 31/36
=================================
- 2 5/12 + 5 7/8 = - 2 20/48 + 5 42/48 = 5 42/48 - 2 20/48 = 3 22/48 =
= 3 11/24
==============
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- 7 7/9 - 1 7/12 = - 7 28/36 - 1 21/36 = - ( 7 28/36 + 1 21/36) = - 8 49/36 =
= - 9 13/36
=============
3 11/12 - 5 7/9 = 3 33/36 - 5 28/36 = - ( 5 28/36 - 3 33/36 ) =
= - ( 4 64/36 - 3 33/36) = - 1 31/36
=================================
- 2 5/12 + 5 7/8 = - 2 20/48 + 5 42/48 = 5 42/48 - 2 20/48 = 3 22/48 =
= 3 11/24
==============