Which group of numbers is in order from smallest to largest?
0.34, 45%, 13/25
27%, 3/4, 0.09
9/10, 0.8, 75%
0.24, 37%, 3/10

Let's express all in decimal:

0.34, 45%, 13/25:         45% = 45/100 = 0.45,  13/25 = 0.52  use calculator.

therefore  0.34, 45%, 13/25 =    0.34,  0.45 , 0.52.

this group is already arranged from the smallest to the largest.

other groups do not follow this pattern.

the answer is the first group.