Billy M. answered 11/22/21
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To put this rate in simplest terms, you want to reduce all common factors.
Begin by listing the factors of each number.
45 3 x 3 x 5
20 = 2 x 2 x 5
As you can see, you can cross out number that are in both sets.
45 = 3 x 3
30 = 2 x 2
= 9/4 feet/seconds