How many liters are equal to 39 kL?
How many milligrams are equal to 4 cg?
and:
Use the common denominator to compare the fractions.
9/10 or 2/3
5/8 or 3/5
2/3 or 5/6
4/14 or 2/7
4/5 or 4/10
6/8 or 5/6

:)