Fraction1/12
Fraction1/12
Decimal≈ 0.0833333333exactly 0.08(3)
Percent≈ 8.333333%exactly 8.(3)%
Where the decimal comes from
There is no rewrite over 10, 100 or 1000 for 1/12: 12 has a prime factor other than 2 and 5, so no whole-number multiplier reaches a power of ten. Watch the long division to see what happens instead — the remainders start circling, and once a remainder comes back, the digits must too:
- 10 ÷ 12 = 0remainder 10
- 100 ÷ 12 = 8remainder 4
- 40 ÷ 12 = 3remainder 4— this remainder has come around before, so from here the digits repeat
Written exactly: 0.08(3) — the parentheses mark the block that repeats forever.
Every way to write it
- Decimal
- ≈ 0.0833333333
- Percent
- ≈ 8.333333%
- Ratio
- 1 : 12 (part to whole)
- As inches
- 1/12″ = 2.116667 mm
Equivalent fractions
Multiply the top and bottom of 1/12 by the same number and the value does not change:
1/12 = 2/24 = 3/36 = 4/48 = 5/60 = 6/72 · more, or pick a denominator
On the number line
As a measurement
Read as inches, 1/12″ is 2.116667 mm exactly. The nearest marks on the finer rules:
| Rule | Nearest mark | Decimal inches | mm | Difference |
|---|---|---|---|---|
| 16ths | 1/16″ | 0.0625 | 1.5875 | −0.5292 mm |
| 32ths | 3/32″ | 0.09375 | 2.3813 | +0.2646 mm |
| 64ths | 5/64″ | 0.078125 | 1.9844 | −0.1323 mm |
Need a different rule or a tolerance? Nearest fraction · Within tolerance
Common questions
- What is 1/12 as a decimal?
- 1/12 is 0.0833333333 rounded; exactly, it is the repeating decimal 0.08(3).
- What is 1/12 as a percentage?
- 1/12 is about 8.333333% as a percentage.
- How many millimetres is 1/12 of an inch?
- 1/12 of an inch is 2.116667 mm, computed with the exact definition 1 inch = 25.4 mm.
Related
Fraction–decimal chartThe everyday set, printable.Rule charts16ths, 32nds, 64ths, 128ths.The rulerSee 1/12 in its place.