Ok, since the recipe is being tripled, it means you need to multiply by 3
So you have to do 1 3/4 x 3/1
First, you need to change 1 3/4 into an improper fraction and that is 7/4
Now, your equation is 7/4 x 3/1
And that equals 21/4
To simplify, you need to do 21 divided by 4
21 divided by 4 is 5 r1
and that will be 4 1/4
So the recipe will call for 4 1/4 cups of flour