First, write 2 1/4 as a fraction.
Then you find the reciprocal.
[tex] 2 \dfrac{1}{4} = 2 + \dfrac{1}{4} = \dfrac{2}{1} + \dfrac{1}{4} = \dfrac{8}{4} + \dfrac{1}{4} = \dfrac{9}{4} [/tex]
The reciprocal of 9/4 is 4/9.
Answer: The reciprocal of 2 1/4 is 4/9.
