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4 years ago

How to justify a/b x b/c = a/c?

2 answers:

8 0

A/b times b/c is = ab/bc
which can be written as a/c times b/b
anything over itself is 1 so b/b is one
a/b times b/c = a/c

ale4655 [162]4 years ago

6 0

Well a/b * b/c = ab/bc, and since b/b= 1 you get 1a/c or just a/c :)

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