Write these decimal numbers in order of size, starting with the smallest.
a 3.46, 2.6, 3.31, 3.49
b 0.71, 0.52, 0.77, 0.59
c 6.9, 6.82, 6.8, 6.97
d 5.212, 5.2, 5.219, 5.199
e 32.448, 32.42, 32.441, 32.4
f 9.08, 9.7, 9.901, 9.03, 9.99​