-76*(7*6-60) -19*4*(-18) -19*4*(-6)*3
----------------- = ------------------- = ------------------- = -12
(-6)*19 -6*19 -6*19
3,5*(-2)-2,8 -7-2.8
----------------- = ------------ = -1
3,5*2.8 9.8
(20-12*5)*(-63) -40*(-9)*7 -20*2*(-9)*7
--------------------- = ------------------- = ----------------- = -2*7=-14
20*(-9) 20*(-9) 20*(-9)
(6,5-4*1,5)*(-9) 0,5 * (-3*3)
-------------------- = ------------------= 1
-3*1,5 -3*0,5*3