Write a fraction and an equivalent terminating decimal between 0.2 and 0.6.

You could pick any number from 0.2 to 0.6.

                 ←→
                     |        |        |               |                |                |
                   0.2   0.25   0.3           0.4            0.5           0.6

Then, think of each number as a fraction, like 1/10.

I am going to pick 0.4.
This would be representing four out of ten, or 4/10.

You could also choose a more complicated number, such as 2.25. Just remember that it MUST be terminating, which means it cannot be a repeating decimal (like 3.333). 2.25 would be expressed as 2 and 25/100, or 2 and 1/4.