Помогитееее,срочноооооо!!!!
.............................
2) a) 5/4 * (-2/7) = -5/14 b) -3/7 * 5/9 = - 5/21 v) -4/9 * (-3/8) = 1/6 3) 7 * 2/3 * (-3/4) * 4/5 * (-5/6) * 6/7 = (7 * 6/7) * (2/3 * (-3/4)) * (4/5 * (-5/6)) = 6 * (-1/2) * (-2/3) = 2/1 = 2
4) 8/3
спасибо огромноееее