A rate is a special type of ratio that compares quantities with unlike units of measure. A unit rate is a rate that has been reduced to have a denominator of 1 unit.
15 cm/1 h
Practice makes perfect
We want to find the unit rate. To do so, we need to divide with the same number in the numerator and the denominator to get an equivalent rate with a denominator of 1 unit. Let's do this with the given ratio.
75cm/5h or 75/5 [5mm]
75 Ă· 5/5 Ă· 5 = 15/1 [5mm]
15 cm/1 h
The unit rate is 15 centimeters per hour.
