1) 2/3 : (-2)= 2/3 * ( - 1/2) = -2/6 = -1/3;
( -3/4) : 1 1/2 = ( -3/4) : 3/2 = ( -3/4) * 2/3 = -1/2;
-4/5 : 8 = -4/5 * 1/8 = -1/10
2) 4 : ( -1/2) = 4 * ( -2) = -8;
5 : ( -5/8) = 5 * ( -8/5) = -8;
(-6) : (-3/5)= (-6) * (-5/3)= 10
3) (-5/6) : (-5/12)= (-5/6) * (-12/5)= 2;
-3 3/4 : 1 1/2 = -15/4 * 2/3 = -5/2;
1 7/9 : (-2 2/3) = 16/9 * (-3/8)= -8/3
4) (-8 2/5) : 7= (-42/5) * 1/7= -6/5;
(-7 1/2) : (-5)= (-15/2) * (-1/5)= 3/2;
4 2/3 : (- 1 1/6)= 14/3 * ( -6/7)= -4