Converting 0.42 to a Fraction
Step-by-step explanation of how to convert 0.42 to a fraction

Result

0.42 =
21
50

Step 1: Identify the number of decimal places

The decimal 0.42 has 2 decimal places.

Step 2: Multiply by the appropriate power of 10

Multiply by 102 = 100 to eliminate the decimal point.

0.42 × 100 = 42

Step 3: Write as a fraction

0.42 =

42
100

Step 4: Simplify the fraction

Find the greatest common divisor (GCD) of 42 and 100.

GCD(42, 100) = 2

Divide both the numerator and denominator by the GCD:

42
100

=

42 ÷ 2
100 ÷ 2

=

21
50
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