Question

помогите решить. Очень нужно.

Answer 1

1. (-5/2 + 7/3)(-36/7) + 4/3 / (-5,6) =
= ( (-15 + 14)/6 )(-36/7) + 4/3 / (-5,6) = 
(-1/6)(-36/7) + 4/3 / (-5,6) = 
= 6/7 + 4/3 / (-28/5) = 6/7 - (4*5)/(3*28) =
= 6/7 - 5/21 = (18 - 5)/21 = 13/21
2. -3,25(-0,001)(37/13) =
= (3,25*37)/(13*1000) = 120,25/13000 = 12025/1300000 = 2405/260000 = 
= 481/52000