mm to Fraction Inches

mm to fraction inches converts mm to fraction inches and vice versa.

How to convert mm to fraction inch?

To convert mm to fraction inch, first needs to divide mm by 25.4, that is how it converts millimeters to inches in decimal.
For example, 80 mm = 80÷25.4 = 3.1496 inches.

And then convert it to inch fraction. The inches fraction in a inch tape measure uses ¹⁄₆₄ inches as the smallest unit to measure. There are also ¹⁄₂, ¹⁄₄, ¹⁄₈, ¹⁄₁₆, and ¹⁄₃₂ on the tape, the denominators are 64 or its factors.

First, multiply the decimal by 64 and round it up, that is the nominator. and then use 64 as denominator.

0.1496x64=9.5744. round it to 10 (that is our nominator), with denominator 64,
0.1496 = ¹⁰⁄₆₄ = ⁵⁄₃₂. Therefore 80 mm = 3 ⁵⁄₃₂.