Converting 21.81288 to a Fraction
Step-by-step explanation of how to convert 21.81288 to a fraction
Result
21.81288 =
272661
12500
Mixed number:
21
10161
12500
Step 1: Identify the number of decimal places
The decimal 21.81288 has 5 decimal places.
Step 2: Multiply by the appropriate power of 10
Multiply by 105 = 100000 to eliminate the decimal point.
21.81288 × 100000 = 2181288
Step 3: Write as a fraction
21.81288 =
2181288
100000
Step 4: Simplify the fraction
Find the greatest common divisor (GCD) of 2181288 and 100000.
GCD(2181288, 100000) = 8
Divide both the numerator and denominator by the GCD:
2181288
100000
=
2181288 ÷ 8
100000 ÷ 8
=
272661
12500
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