Express as meters using decimals 2m 45cm.

Hint: Here we will convert the cm into m and add it to the 2m to get the result.

Complete step-by-step answer:

Decimal form of 2m45cm$ = 2m + 45cm$.
As we know that $1m = 100cm$
So, $1cm = \dfrac{1}{{100}}m$ then $45cm = \dfrac{{45}}{{100}}m$
Therefore,
$ \Rightarrow 2m + 0.45m = 2.45m$
Decimal form of 2m 45cm=2.45m

Note: As we know that in 1 meter there are 100 centimeters. Then convert the quantity given in centimeters to meter and add it to another meter quantity to get the result in terms of meter.