Question

1. envision® stem floodwalls are used to prevent damage from floods. a town built a floodwall $4\frac{4}{8}$ feet tall. another town built a floodwall $7\frac{1}{8}$ feet tall. what is the difference between the heights of the floodwalls?

Explanation:

Step1: Identify the heights to subtract

Heights: $7\frac{1}{8}$ ft, $4\frac{4}{8}$ ft

Step2: Convert to improper fractions

$7\frac{1}{8} = \frac{57}{8}$, $4\frac{4}{8} = \frac{36}{8}$

Step3: Subtract the fractions

$\frac{57}{8} - \frac{36}{8} = \frac{21}{8}$

Step4: Convert back to mixed number

$\frac{21}{8} = 2\frac{5}{8}$

Answer:

$2\frac{5}{8}$ feet