1. =-2.5+10/12-1/12+9/12+2,25=18/12-3/12=15/12=5/4=1 i 1/4 2. =1,25:(-0,2) x 0,3=-1,875 3. =5,2-0,2 x (-0,5)=5,2+0,1=5,3 4. =-3,6:(-0,6)x5=10,8 5. =-0,6x3,5+4,2x(-1 i 1/6)=-2,1+(-4,9)=7
1. (-2,5)-(-5/6)-1/12-(-3/4)-(-2,25)=(-5/2)+5/6-1/12+3/4+9/4=(-30/12)+10/12-1/12+9/12+27/12=15/12=5/4=1 i 1/4 2. 1 1/4:(-0,2) x 0,3=5/4:(-2/10)x3/10=5/4x(-10/2)x3/10=(-25/4)x3/10=-15/8=-1 i 7/8 3. 5,2-1/5 x (-0,5)=52/10-1/5x(-1/2)=52/10+2/10=54/10=5,4 4. -3,6:(-3/5)x5=-36/10x(-10/35)x5=36/35x5=180/35=5 i 1/7 5. -0,6 x 3 1/2 +4,2 x (-1 1/6)=(-6/10)x7/2+42/10x(-7/6)=(-21/10)+(-49/10)=-70/10=-7
1) -25/10+5/6-1/12+3/4+9/4=-5/2+5/6-1/12+12/4=-30/12+10/12-1/12+36/12=6/12+9/12=15/12=5/4=1i1/4 2) 5/4*(-5)*3/10=-15/8=-1i7/8 3) 52/10-1/5*(-1/2)=52/10+1/10=53/10=5i3/10 4) -18/5*(-5/3)*5=30 5) -6/10*7/2+21/5*(-7/6)=-21/10-49/10=-70/10=-7
