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(-3/2)(-3/4)-4/3 9/8-4/3 27/24-32/24 -5/24
=--------------------------=---------------------=-----------------=------------=
1/9-8/10:8/5 10/90-72/90*5/8 -62/90 *5/8 -310/72
=-5/24 *(-720/310)=15/31
b)
1/4+4/5*(-10/8) 1/4-1 -3/4 -3/4
=---------------------------= -----------------=------------=---------=
-[(-15/10)*3/2-3/2] -[-45/20-3/2 -[-75/20] 75/20
=-3/4 *20/75=-1/5=-0,2
c)
100:[-[2 3/4-(-1/2)*1 1/2]]=100:[-[2 3/4-(-3/4)]]=100:[-3 1/2]=100:(-7/2)=100*(-2/7)=-200/7=-28 4/7
2)
-12,5+(4 1/3)*(-3 9/10)=-12,5+(13/3)*(-39/10)=-12,5+(-169/10)=
-12 2/10 - 16 9/10=-29 1/10
b)
-10,6+(4*1 1/5)=-10,6+(4*6/5)=-10,6+24/5=-10 6/10+4 8/10=-5 8/10