a) (126÷2)/(162÷2)=(63÷3)/(81÷3)=(21÷3)/(27÷3)= 7/9
b)(75÷5)/(-60÷5)=(-15÷5)/(20÷5)=-3/
c)-98/-42=(-98÷2)/(-42÷2)=(49÷7)/(21÷7)=7/3
d)-72/104=(-72÷2)/(104÷2)=(-36÷2)/(52÷2)=(-18÷2)/(26÷2)= -9/13
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a) (126÷2)/(162÷2)=(63÷3)/(81÷3)=(21÷3)/(27÷3)= 7/9
b)(75÷5)/(-60÷5)=(-15÷5)/(20÷5)=-3/
c)-98/-42=(-98÷2)/(-42÷2)=(49÷7)/(21÷7)=7/3
d)-72/104=(-72÷2)/(104÷2)=(-36÷2)/(52÷2)=(-18÷2)/(26÷2)= -9/13