a) -12i2/5-2i2/5:(-2i2/3)+2i2/3*(-0,9)-0,1= -12i2/5-12/5*(-3/8)+8/3*(-9/10)-1/10= -12i2/5-3/5*(-3/2)+8/3*(-9/10)-1/10= -12i2,5+9/10+4*(-3/5)-1/10= -12i2/5+9/10-12/5-1/10= -62/5-12/5+9/10-1/10= -74/5+8/10= -148/10+8/10= -140/10=-14 b) -[-(-7i1,3):1,1-1,1*6i2/3+4i1/6*(-4)= -[-(-22/3):1i1/10-1i1/10*20/3]+25/6*(-4)= -[-(-22/3)*10/11-11/10*20/3]+50/3= -[-(2/3)*10-11*2/3]+50/3= -[-(-20/3-22/3]+50/3= -[-(-42/3]+50/3= -[42/3]+50/3= -42/3+50/3= 8/3 c) 0,024*(-3i1/3):0,004-[-1i1/7*(-5i5/8+2i1/8:1,7)]= 24/1000*(-10/3):4/1000-[-8/7*(-45/8+17/8:1,7)]= 2*(-10)*1-[-8/7*(-7/2:17/10)]= -20-[-8/7*(-7/2*10/17)]= -20-[-8/7*(-7*5/17)]= -20-[8/7*(-35/17)]= -20-[-8*(-5/17)]= -20-40/17= -20-2i6/17=-22i6/17 d) 40-2i4/7:(-0,12+(-3/4):12,5]*(-1/4)= 40-18/7:[-12/100+(-3/4):12i1/2]*(-1/4)= 40-18/7:[-12/100+(-3/4):25/2]*(-1/4)= 40-18/7:[-12/100+(-3/2)*1/25]*(-1/4)= 40-18/7:[-12/100+(-3/50)]*(-1/4)= 40-18/7:[-12/100+(-6/100)]*(-1/4)= 40-18/7:(-18/100)*(-1/4)= 40-18/7:(9/100)*(-1/2)= 40-18/7:9/200= 40-18/7*200/9= 40-2/7*200= 40-400/7=40-57i1/7=-17i1/7
