Пошаговое объяснение:0,4(x-y)=0,4×5/8=4/10×5/8=1/2×1/2=1/4
1,2(y-x)=1,2×(-5/8)=1 2/10×(-5/8)=12/10×(-5/8)=3/2×(-1/2)=-3/4
x-y/0,25=5/8÷1/4=5/8×4/1=5/2×1/1=5/2=2 1/2
1,5/x-y=1 5/10÷5/8=15/10×8/5=3/5×4/1=12/5=1 2/5
Пошаговое объяснение:0,4(x-y)=0,4×5/8=4/10×5/8=1/2×1/2=1/4
1,2(y-x)=1,2×(-5/8)=1 2/10×(-5/8)=12/10×(-5/8)=3/2×(-1/2)=-3/4
x-y/0,25=5/8÷1/4=5/8×4/1=5/2×1/1=5/2=2 1/2
1,5/x-y=1 5/10÷5/8=15/10×8/5=3/5×4/1=12/5=1 2/5