0.42 as a Fraction
0.42 = 21/50
0.42 as a fraction in simplest form is 21/50.
Step by step
- 0.42 has 2 decimal places, so write it over 100: 42/100.
- Find the greatest common divisor of 42 and 100: 2.
- Divide the top and bottom by 2: 42 ÷ 2 = 21, 100 ÷ 2 = 50.
- So 0.42 = 21/50.
Details
- Fraction
- 21/50
- Percent
- 42%
- Nearest 1/16 (tape measure)
- 7/16
- Reciprocal
- 50/21 ≈ 2.381
How it works
To turn a decimal into a fraction, count the digits after the decimal point, write the digits over 10, 100, 1,000 and so on, then simplify by dividing the numerator and denominator by their greatest common divisor. A decimal that ends (terminates) always converts to an exact fraction; a decimal that repeats forever, such as 0.333…, equals a fraction like 1/3.
Nearby values
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Frequently asked questions
What is 0.42 as a fraction?
0.42 is 21/50 in simplest form.
How do you convert 0.42 to a fraction?
Write 0.42 as 42/100, then divide the top and bottom by 2 to get 21/50.
What is 0.42 as a percentage?
0.42 × 100 = 42%.
Is 21/50 in simplest form?
Yes — 21 and 50 have no common factor other than 1.