How do you change $ 75 $ millimeters to decimeters?

Hint: In order to change $ 75 $ millimeters to decimeters, we know that one decimeter is equal to $ 100 $ millimeter, so to convert millimeters to decimeters, we will divide the given value by $ 100 $ . Thus, we will get the required value.

Complete step-by-step answer:
If we need to convert one millimeter to decimeter, then we need to multiply the value of the decimeter with $ 100 $ i.e., $ 1\,dm = 1\,mm \times 100 $ .
The decimeter is a unit of length in the metric system, equal to one tenth of a meter. The common non-SI metric unit of volume, the liter, is defined as one cubic decimeter. A decimeter is not as widely used, but is not as widely used, but is an important unit. In real life, we rarely find measurements written in decimeters. Decimeter is a unit larger than millimeter and centimeter. In the increasing order of units, the decimeter is in the third position and further the units.
Now, we need to convert $ 75 $ millimeters to decimeters.
Generally, we know that one decimeter is equal to $ 100 $ millimeter, so to convert millimeters to decimeters, we have to divide the given value by $ 100 $ .
Thus, we have,
 $ 75\,mm = \dfrac{{75}}{{100}}\,dm $
 $ 75\,mm = 0.75\,dm $
Hence, the value of $ 75 $ millimeters is $ 0.75 $ decimeter.
So, the correct answer is “ $ 0.75 $ decimeter”.

Note: The millimeter is a unit of length in the metric system, equal to one thousand of a meter, which is the SI base unit of length. Therefore, there are one thousand millimeters in a meter. There are ten millimeters in a centimeter. Millimeters are used to measure very small but visible-scale distances and lengths. In terms of real-world comparisons, a millimeter is roughly the size of the wire used in a standard paper clip. It is used throughout the world in the sciences and is the standard of measurement for science engineering, technology and mathematics (STEM).