Put these fractions in order from greatest to least: 4/12, 1/4, 5/6.
a) 5/6 > 1/4 > 4/12
b) 1/4 > 4/12 > 5/6
c) 5/6 > 4/12 > 1/4
d) 1/4 > 5/6 > 4/12