Identify the numeric order of these fractions and mixed numbers from smallest to largest: 1 3/6, 2 3/5, 7/9, 1 7/8.
A: 2 3/5, 1 7/8, 1 3/6, 7/9
B: 13/15, 15/8, 9/6, 7/9
C: 7/9, 10/6, 16/18, 13/5
D: 7/9 1 3/6, 1 7/8, 2 3/5
The correct order from smallest to largest is:
C: 7/9, 10/6, 16/18, 13/5