The number of cups required for one loaf `= 5 1/4 = 21/4`
`:.` The number of cups required for three loaves `= 3**21/4 = 63/4`
Steve has `20` cups.
So, remaining number of cups `= 20-63/4 = (80-63)/4 = 17/4 = 4 1/4`
For cake recipe, `3 3/4` cups are required and remaining cups are `4 1/4`.
As, `4 1/4 gt 3 3/4`, it means Steve has enough cups left to make cake recipe.