Order the fractions 3/8, 3/6, and 3/10 from least to greatest.

You can see immediately because 3 is always the numerator so big denominator is small value

so it goes
10 , 8 , 6
but to be official
LCD need 2*2*2 * 3 * 5 = 120

3/8 = 45/120

3/6 = 60/120

3/10 = 36/120

so
3/10 3/8 3/6