Here we convert the cardinal number four hundred twenty-one (421) to an
ordinal number. This is useful if you want to use the number 421 as an
adjective when you speak or write it.
There are two ways of writing 421 as an ordinal number, either with letters
and numbers or just letters as follows:
421st
four hundred twenty-first
When would you be using the ordinal instead of the cardinal version of 421
you ask?
You use 421 (cardinal) if you are describing how many of something, and you use 421st (ordinal) if you
are describing a position or rank of something.
Like we mentioned above, remember to use the ordinal version of 421 when
421 is used as an adjective.
Convert 422 cardinal to ordinal
Go here for the next number we converted from cardinal to ordinal.
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