1)-3 целых 7\9 *(-6)= -8 целых 1\7 : 19=
-3.7/9 * ( - 6 ) = 34/9 * 6/1 = 34/3 * 2/1 = 64/3 = 21 1/3 - 8 1/7 : 19 = - 57/7 * 1/19 = - 3/7