Answer:
3 1/2 ft
Step-by-step explanation:
lets start by converting our fractions into improper fractions and giving them like denominators
4 3/8= 35/8
1 1/4= 5/4
the biggest like number these denominators fit into is 8
so 35/8 stays the same and
5/4 becomes 10/8
now, area of a rectangle is length x width= area
so plug in the numbers and solve for x!
10/8 times x= 35/8
division with fractions doesn't exist, so you flip the fraction and multiply instead.
35/8 x 8/10 = 35/10
simplify and get 3 1/2!