Помогите!!!!!!!!!!!!!!!!!!!!!!!!!! Д и Е

д) 5 5/17 * (-4 8/15) = 90/17 * (-68/15) = -(90*68)/(17*15) = -6/4 = -1,5 е) 2 13/18 * (-3 3/14) = 49/18 * (-45/14) = -(49*45) / (18*14) = -(7*5) / (2*2) = -8,75