Converting 21.80984 to a Fraction
Step-by-step explanation of how to convert 21.80984 to a fraction

Result

21.80984 =
272623
12500
Mixed number:
21
10123
12500

Step 1: Identify the number of decimal places

The decimal 21.80984 has 5 decimal places.

Step 2: Multiply by the appropriate power of 10

Multiply by 105 = 100000 to eliminate the decimal point.

21.80984 × 100000 = 2180984

Step 3: Write as a fraction

21.80984 =

2180984
100000

Step 4: Simplify the fraction

Find the greatest common divisor (GCD) of 2180984 and 100000.

GCD(2180984, 100000) = 8

Divide both the numerator and denominator by the GCD:

2180984
100000

=

2180984 ÷ 8
100000 ÷ 8

=

272623
12500
Related Conversions
Other decimal to fraction conversions you might find useful