In order to list them from least to greatest is by finding the smallest number first. Negative numbers are always less than positive, so -3/8 and -0.65 have to be ordered first. -3/8 or -0.38 is greater than -0.65, so -0.65 would be first. Then the next negative which is -0.65 comes next. the last two fractions are 2/4 or 1/2 or 0.5 and 5/16 or 0.31. 0.5 is greater than 0.31, so the order is -0.65, -3/8, 5/16, and 2/4. Hope this helps!