Respuesta :

Answer:

21/4 or 5 1/4

Step-by-step explanation:

So 1 3/4 is 7/4. So 7/4*3=21/4.

Answer:

5 1/4 cups is needed

Step-by-step explanation:

1 3/4 x 3

7/4 x 3 = 21/4 = 5 1/4