No, that's 1/12
3 and 3 fourths
11/2
one half
1/2
1/2
two fourths
2 and 2/4 is 2 and 1/2 in its simplest form
1/2
There are many - two thirds is its simplest form, but there's eight twelfths, sixteen twenty fourths etc. But you can't get simpler than two thirds.
4 1/2 is the simplest form.
Forty two fifty sixths in its simplest form is twenty one twenty eighths.
Expressed as a proper fraction in its simplest form, 1/6 x 2 3/4 = 11/24 or eleven twenty-fourths. Expressed as a decimal, this is equal to 0.4583 recurring (that is, 0.4583333...)