What is the value of the expression  |−6/7|?

The expression |-6/7| represents the absolute value of -6/7. The absolute value of a number is its distance from zero on the number line.

Since |-6/7| represents the distance, and distance cannot be negative, the absolute value of -6/7 will always be positive. Therefore, the value of the expression |-6/7| is simply 6/7.