A rate is a unit rate when the denominator is 1. Then, in each part we must simplify the fractions so we find them as a unit rate:
[tex]\frac{3}{2}=1.5=\frac{1.5}{1}[/tex]3 Tbsp/2 tsp = 1.5 Tbsp / tsp
[tex]\frac{135}{45}=3=\frac{3}{1}[/tex]135 piches/45 strikes = 3 pitches / strike
[tex]\frac{128}{4}=32=\frac{32}{1}[/tex]128 miles/4 hours = 32 miles/hour
[tex]\frac{2250}{18}=125=\frac{125}{1}[/tex]2250 pencils/18 boxes = 125 pencils/box
