Converting 21.9 to a Fraction
Step-by-step explanation of how to convert 21.9 to a fraction
Result
21.9 =
219
10
Mixed number:
21
9
10
Step 1: Identify the number of decimal places
The decimal 21.9 has 1 decimal places.
Step 2: Multiply by the appropriate power of 10
Multiply by 101 = 10 to eliminate the decimal point.
21.9 × 10 = 219
Step 3: Write as a fraction
21.9 =
219
10
Step 4: Simplify the fraction
Find the greatest common divisor (GCD) of 219 and 10.
GCD(219, 10) = 1
Divide both the numerator and denominator by the GCD:
219
10
=
219 ÷ 1
10 ÷ 1
=
219
10
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