Question

Помогите решить примеры 6,7,8 пожалуйста

Answer 1

6) 2 5/12 - 17 3/8= - (17 3/8 - 2 5/12) = - [15 3/8 - 5/12]= - [123/8 - 5/12] = - [ 369/24 - 10/24] =-(359/24)= - 14 23/24
7) - 29 + 17 ⅛ = - (29 - 17⅛) = - ( 12 - ⅛)= - 11 7/8
8) 17-1,25=16-0,25=15,75

Answer 2

= 2 5/12 - 17 3/8 = - 15 - (3/8-5/12)=-15 -(9/24-10/24)=-15+1/24=-14  23/24
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= - 11  7/8
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= 17 - 1,25 = 15,75