Answer:
4 1/5 or 21/5 (improper fraction)
Explanation:
To find the area of a rectangle, there is a formula:

So, we know the length is 7ft, and the width is 6/10.
Substitute in the 2 values:

From here, you can go 2 ways:
1) Change 6/10 to a decimal, 0.6
-Then, multiply 7 x 0.6
- This equals 4.2, which as a fraction is 4 1/5 or 21/5
2) Turn 7 into a fraction, 7/1 and multiply the numerators and denominators:
- 7/1 x 6/10 = 42/10 = 21/5
Hope this helps! :)