99/100

Fraction99/100
Decimal0.99
Percent99%

Where the decimal comes from

99/100 equals 0.99.

The denominator is already a power of ten, and that is what a decimal is: 0.99 means 99 hundredths.

99 of 100 squares — 0.99 of the whole. The same squares read as a percentage: 99%, because percent means per hundred.

Every way to write it

Decimal
0.99
Percent
99%
Ratio
99 : 100 (part to whole)
As inches
99/100″ = 25.146 mm

Equivalent fractions

Multiply the top and bottom of 99/100 by the same number and the value does not change:

99/100 = 198/200 = 297/300 = 396/400 = 495/500 = 594/600 · more, or pick a denominator

On the number line

0 1 99/100

As a measurement

Read as inches, 99/100″ is 25.146 mm exactly. The nearest marks on the finer rules:

RuleNearest markDecimal inchesmmDifference
16ths1″ 125.4+0.254 mm
32ths1″ 125.4+0.254 mm
64ths63/64″ 0.98437525.0031−0.1429 mm

Need a different rule or a tolerance? Nearest fraction · Within tolerance

Common questions

What is 99/100 as a decimal?
99/100 is exactly 0.99 as a decimal.
What is 99/100 as a percentage?
99/100 is exactly 99%.
How many millimetres is 99/100 of an inch?
99/100 of an inch is 25.146 mm, computed with the exact definition 1 inch = 25.4 mm.

Related

0.99 as a fractionThe same number from the decimal's side, with the reduction shown.99% as a fractionThe same number as a percentage, with the work shown.Fraction–decimal chartThe everyday set, printable.Rule charts16ths, 32nds, 64ths, 128ths.The rulerSee 99/100 in its place.
Where this comes from. Exact rational arithmetic on the values shown — fractions are pairs of integers until display, and inch–metric conversion uses 25.4 mm to the inch, exact by definition since 1959. See the full methodology.