Sometimes people accidentally multiply the whole number by the fraction instead of adding. Don’t be that person. That’s like trying to hug a ghost—you’ll just end up confused.
Another mistake is forgetting that 1/4 is 0.25, not 0.4. I get it—your fingers might slip on the keyboard. But now you know the truth, and the truth will set your decimal free.
If you ever get stuck, just remember: 1/4 of a dollar is 25 cents. That’s a quarter. And four quarters make a dollar, which is why 4 1/4 is like having four dollars and a quarter. Easy money, literally.