Question

Answer 1

a) = 1/6 + -7/12 = -5/12

b) = -5/9 + 5/9 : (5/3 - 25/12) = -5/9 + 5/9 : -5/12 = -5/9 + -4/3 = -7/9

c) = -7/25. ( 11/13 + 2/13 ) - 18/25 = -7/25. 59/39 - 18/25 = -413/975 - 18/25 = -22/3 

Answer 2

 => 1/6 + -7/12 = -5/12

=> -5/9 + 5/9 : (5/3 - 25/12) = -5/9 + 5/9 : -5/12 = -5/9 + -4/3 = -7/9

=> -7/25. ( 11/13 + 2/13 ) - 18/25 =

-7/25. 59/39 - 18/25 =

-413/975 - 18/25 = -22/3