Does anyone here know how to do dimensional analysis?

Question

ttp · Answer

@SolomonZelman @dan815 @Data_LG2 @texaschic101 @tHe_FiZiCx99 @PlasmaFuzer  @Preetha

ttp · Answer

@Hero @satellite73 @Zale101

anonymous · Answer

Isn't the dimensional analysis refers to the method of cancelling units to solve for what you are looking for?(that's how I describe it, pardon my poor vocab) O.o Do you have a specific problem related to this topic?

anonymous · Answer

i said "cancelling units" because that's what i usually use in chem. 

example in converting measurements:

let's say you have to convert 1500 cm into m. First thing you need to know how many cm are there in m? You know 100 cm = 1 m. Now convert your given value using dimensional analysis:
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