How to convert 0.42 to a fraction?

0.42 = 42/100 Then simplify to 21/50.

0.42 terminating or repeating?

It is a terminating decimal. The simplest fraction is 21/50.

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0.42 =

0.42

100

(2 decimal places → denominator 100)

42/100

→ simplify ÷2

(divide numerator and denominator by 2)

Step 1: 0.42 has 2 decimal places, so write it as 42/100.

Step 2: Divide numerator and denominator by 2: 42/100 → 21/50.

Property: In simplest terms, denominators with prime factors only 2 and/or 5 produce terminating decimals.

Why can 0.42 be converted to a fraction?: Decimals can be expressed as fractions by using place value and simplifying.
0.42 terminating or repeating?: It is terminating.
Can it be simplified further?: 21/50 is simplest.

Percentage & Ratio: 0.42 can be interpreted as 21/50 in practical scenarios like discounts and rates.

Statistics: A proportion of 0.42 often represents a 42% probability — for example, a 42% significance level (p-value) in experiments or surveys.

Finance: Rates expressed with 0.42 (e.g., 42%) appear in returns and fees.