Its not that hard.
Half of the inch part is 1/2 inch which is also 4/8.
half of the 3/4 part is 3/8 you get by multiplying the denominator by 2.
Put it all back together and you get the 4/8 part and the 3/8 part so in total its 7/8 of an inch.
The red marks on this ruler are at 1/16, 1/8, 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, and 1. When marking down a distance from a ruler, mark the whole inch, followed by a space, then the fraction of an inch. For example, 1 1/2, or 2 3/8.
Fraction, Decimal, and Millimeter Equivalent Measurements
Fraction Decimal Millimeters 3⁄8” 0.375 9.525 7⁄16” 0.4375 11.1125 1⁄2” 0.5 12.7 9⁄16” 0.5625 14.2875
Also Know, what is 1/8 of an inch on a ruler? The 1/8 of an inch marks are the smaller marks found directly in between the 1/4 of an inch marks on the ruler. Between 0 and 1 inch, there are marks that denote 1/8, 1/4 (or 2/8), 3/8, 1/2 (or 4/8), 5/8, 6/8 (or 3/4), 7/8, and 1 (or 8/8) of an inch. In total, there are 96 of these marks on a 12 inch ruler.
In this manner, what is 1/3 of an inch on a ruler?
You lay the ruler at an angle to the line along which you wish to measure, such that 1/2″ on the ruler corresponds to 1/3″ on the baseline. Draw a baseline along which you want to measure 1/3 inch. Lay down the ruler so that 0 is at the origin, and the 3 inch mark is on the perpendicular somewhere.
What is 3/8 inch on a ruler?
The red marks on this ruler are at 1/16, 1/8, 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, and 1. When marking down a distance from a ruler, mark the whole inch, followed by a space, then the fraction of an inch. For example, 1 1/2, or 2 3/8.