Is there a calculator that can calculate fractions?

Absolutely! Today's calculators do far more than the early ones that only performed the basic operations of addition, subtraction, multiplication, and division. Most scientific calculators today have a Fraction Key which I will denote FK for this post.

For example, on the TI-30Xa, the FK is denoted a b/c which corresponds to a mixed number such as 3 1/2. There's also an improper fraction key denoted d/c which can be accessed using the 2ndfunction key. Regardless, I've found that the a b/ckey will suffice for any fraction (regular, improper, and mixed).

Entering fractions into the calculator is easy. Suppose you wanted to evaluate the following: 2 1/3 + 7/8. Enter "2 FK 1 FK 3 + 7 FK 8 =" Presto! Your answer appears in a format similar to the following "3_5_24" which represents 3 5/24.

No more having to find common denominators! The fraction key also works with the other basic operations of subtraction, multiplication, and division. Did I mention that it also reduces the answer to it's simplest form?

That Fraction Key is what I call amazing!