Jared used one whole number 2/5 of soil for his garden. He is digging another garden that will need 1/5 as much soil as the original. How much will he use total.

Assuming " one whole number 2/5 of soil for his garden" mean 1+2/5 (equal to 7/5) then 1/5 of the original garden soil would be:

1/5 * 7/5 = 7/25

Then you need to add the first sum (7/5) with the second sum (7/25) to get the total soil. The calculation would look like this:

7/5 + 7/25 = 35/25 + 7/25 = 42/25 = 1 + 17/25