Answer
Length of the gray = (12/16) inch = (3/4) inch
Step-by-step explanation
Each small line demarcating each small region between 0 and 1 represents one-sixteenth of an inch.
So, there 16 such small regions between 0 and 1.
And the region indicated goes from 0 and covers 12 of the 16 small regions.
So, the measure indicated is
(12/16)
To reduce to the smallest fraction, we divide numerator and denominator by 4
(12/16) = (3/4)
Hope this Helps!!!