What is 0.12 divided by 1?

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Answer 1 · 2018-05-04T08:15:48

$0.12$

Every number divided by $1$ remains unchanged!

You may justify this using the fact that $1$ is the neutral element for multiplication, id est

$a \cdot 1 = a$ for every number $a$

For example, $5 \cdot 1 = 5$

Now, in general, we know how to invert multiplication and turn them into divisions:

$5 \cdot 3 = 15 \implies 15 \div 3 = 5$

So, with one, it works like this:

$a \cdot 1 = a \implies a \div 1 = a$

Answer 2 · 2018-05-04T12:43:49

$0.12$

Anything divided by $1$ will equal to itself, because multiply anything by $1$ will give out the exact same result.

$:.0.12-:1=0.12$