а) (5/8)/(3/4) = (5/8)*(4/3)=(5/2)*(1/3)=5/6
б) (8/9)/(8/27)=(8/9)*(8/27)=3
в) (12/25)/(3/20)=(12/25)*(20/3)=(4/5)*4=16/5=3(1/5)
г) (5/32)/30 = (5/32)*(1/30)=(1/32)*(1/6)=(1/192)
д) (21/32)/(35/64)=(21/32)*(64/35)=3*(2/5)=6/5=1(1/5)
а) (5/8)/(3/4) = (5/8)*(4/3)=(5/2)*(1/3)=5/6
б) (8/9)/(8/27)=(8/9)*(8/27)=3
в) (12/25)/(3/20)=(12/25)*(20/3)=(4/5)*4=16/5=3(1/5)
г) (5/32)/30 = (5/32)*(1/30)=(1/32)*(1/6)=(1/192)
д) (21/32)/(35/64)=(21/32)*(64/35)=3*(2/5)=6/5=1(1/5)