SOLUTION: I don't know how to approach this proof. For all numbers a, b,c,d is an element of real numbers. B,d do not equal zero if a/b = c/d then ad=bc Why mudr the restrictions on

SOLUTION: I don't know how to approach this proof. For all numbers a, b,c,d is an element of real numbers. B,d do not equal zero if a/b = c/d then ad=bc Why mudr the restrictions on

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Question 561645: I don't know how to approach this proof.
For all numbers a, b,c,d is an element of real numbers.
B,d do not equal zero
if a/b = c/d
then ad=bc
Why mudr the restrictions on b and d exist.
should the same apply to b and d.
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
Anything divided by 0 is not defined.
so b & d cannot be equal to 0
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