Greater than is the symbol that you see here in red > that we use to compare numbers that are not equal when the greater number is written first.
Greater than means the same thing as bigger than.
Therefore, you can use greater than or bigger than to show that the number on the left is greater than or bigger than the number on the right.
10 > 1 Read as ten is greater than one
5/2 > 3/2 Read as one five halves is greater than three halves
-2 > -8 Read as negative 2 is greater than negative eight