Answer:
Explanation:
We have to write 4.9 hr to 2.1 hr in simplest form, with whole numbers in the numerator and denominator.
Thus, Given:

1. Write the ratio as whole numbers
In order to write the ratio as whole numbers, we need to clear the decimals by simply multiplying the numerator and the denominator by 10.
=

2.Reduce the fraction to its simplest form
Reduce the fraction to the simplest form, thus we get

This answer means that the numerator and denominator of the given fraction
are in a 7:3 ratio relationship with each other.