What is 2 and 1/4 as an improper fraction

2 and 1/4 as an improper fraction is 9/4.

A fraction is called improper fraction when the numerator is equal to or larger than the denominator. A proper fraction is when the numerator is less than the denominator.

2 1/4 became an improper fraction of 9/4 through the following steps.

2 * 4 = 8 * multiply the whole number to the denominator

8 + 1 = 9 * add the numerator to the product, sum is the new numerator

⇒ 9/4 * don't forget to put the denominator, for it to become an improper fraction.