if a full reciepe calls for 5/7 of a cup of granola how much would it take for 5/3 reciepe

You can set this up as a ratio of granola to recipe:

5/7 cups per 1 recipe = x cups per 5/3 recipe

In an equation,

(5/7)/1 = x/(5/3)

Multiply each side by 5/3 to get

(5/3) (5/7) = x

x = 25/21 cups of granola