(-5/8)×(-4/5)×(-3/4)×(-2/3)×(-1/2)​

) (-5/8)*(-4/5)*(-3/4)*(-2/3)*(-1/2)

1. (-5/8)*(-4/5)=4/8

2. 4/8*(-3/4)=-3/8

3. -3/8*(-2/3)=2/8

4. 2/8*(-1/2)=-1/8

2)(-7/12)*(-6/7)*(-5/6)*(-4/5)+2/3

1. (-7/12)*(-6/7)=6/12

2. 6/12*(-5/6)=-5/12

3.-5/12*(-4/5)=4/12=1/3

4. 1/3+2/3=3/3=1

(-11/15)*(-10/11)*(-9/10)+(-7/9)*(-6/7)+4/15

1. (-11/15)*(-10/11)=10/15

2. 10/15*(-9/10)=-9/15

3. (-7/9)*(-6/7)=6/9

4. -9/15+6/9=-27/45+30/45=3/45=1/15

5.1/15+4/15=5/15=1/3

(-5/8)×(-4/5)=1\2

1\2*(-2/3)=-1\3

-1\3*(-3\4)=1\4

1\4*(-1\2)=-1\8

Пошаговое объяснение: