6 hours 24 minutes.
Sixty eight minus thirty eight equals thirty
It is minus one half.
The term "a number minus eight" can be symbolized as x - 8.
Eight minus one and one ninth equals six and eight ninths.
Nine tenths minus eight fifteenths equals eleven thirtieths.
2 minus 8 is -6
Eight minus two thirds would be seven and one third.
-20 negative 20 minus 20