express 324 1/4 in simplest radical form

To express 324 1/4 in simplest radical form, we first convert it to an improper fraction:

324 1/4 = (4*324 + 1)/4 = 1297/4

Now, we can express 1297/4 in radical form by finding the square root of the numerator and denominator separately:

√1297 / √4 = √1297 / 2

So, 324 1/4 in simplest radical form is √1297 / 2.