CalcunautWhat is 8.42 as a Fraction?
Learn how to convert 8.42 to a fraction with step-by-step instructions
Quick Answer
8.42 as a fraction is:
421/50
This is the simplest form of the fraction
8.42 Decimal to Fraction Calculator
Convert Any Decimal to a Fraction
Enter a decimal number to see its fraction equivalent
How to Convert 8.42 to a Fraction
General Method: Converting Decimals to Fractions
Follow these steps to convert any decimal to a fraction
Step 1: Count Decimal Places
Count the number of digits after the decimal point
Example: 0.25 has 2 decimal places
Step 2: Multiply by Power of 10
Multiply by 10 raised to the number of decimal places
0.25 × 100 = 25
Step 3: Create Fraction
Use the result as numerator over the multiplier as denominator
25/100
Step 4: Simplify
Reduce the fraction if possible by dividing both numbers by their GCD
25/100 = 1/4
Converting 8.42 to a Fraction
Let's apply the method to convert 8.42
Count the decimal places in 8.42
Multiply by 10⁵ (100)
Write as a fraction
Simplify the fraction
Final Result
8.42 = 421/50
Tips and Notes
- The denominator will always be a power of 10 for terminating decimals
- Each decimal place corresponds to multiplying by 10 (e.g., 2 places = 100)
- Very small decimals like 8.42 often result in fractions with large denominators
Related Decimal to Fraction Conversions
| Decimal | Fraction | Comparison |
|---|---|---|
| 0.842 | 42.1/50 | Smaller |
| 8.42 | 421/50 | Current Value |
| 84.2 | 4210/50 | Larger |
| 842 | 42100/50 | Larger |
| 8420 | 421000/50 | Larger |
Additional Information
Scientific Notation
8.42 can be written as 421 × 10⁻2 in scientific notation
Percentage
8.42 is equal to 842.000% as a percentage
Common Calculations with 8.42
Quick Reference Guide
Common calculations and conversions with 8.42
Multiplication
- 8.42 × 10 = 84.2
- 8.42 × 100 = 842
- 8.42 × 1000 = 8420
- 8.42 × 10000 = 84200
- 8.42 × 50 = 421
Division
- 8.42 ÷ 2 = 4.21
- 8.42 ÷ 5 = 1.684
- 8.42 ÷ 10 = 0.842
- 8.42 ÷ 1/8.42 = 50
8.42 in Different Number Systems
Decimal
8.42
Scientific Notation
421 × 10⁻2
Percentage
842.000%
Fraction
421/50
Parts Per Million
8420000 PPM
Binary
0.0100 0010
Real-World Applications of 8.42
Where You Might Encounter 8.42
Scientific Applications
- • Microscopic measurements (8420000 micrometers)
- • Chemical concentrations
- • Statistical probability calculations
- • Error margins in precise measurements
Engineering
- • Manufacturing tolerances
- • Electronic component specifications
- • Quality control measurements
- • Precision engineering