CalcunautWhat is 3.87 as a Fraction?
Learn how to convert 3.87 to a fraction with step-by-step instructions
Quick Answer
3.87 as a fraction is:
387/100
This is the simplest form of the fraction
3.87 Decimal to Fraction Calculator
Convert Any Decimal to a Fraction
Enter a decimal number to see its fraction equivalent
How to Convert 3.87 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 3.87 to a Fraction
Let's apply the method to convert 3.87
Count the decimal places in 3.87
Multiply by 10⁵ (100)
Write as a fraction
Simplify the fraction
Final Result
3.87 = 387/100
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 3.87 often result in fractions with large denominators
Related Decimal to Fraction Conversions
| Decimal | Fraction | Comparison |
|---|---|---|
| 0.387 | 38.7/100 | Smaller |
| 3.87 | 387/100 | Current Value |
| 38.7 | 3870/100 | Larger |
| 387 | 38700/100 | Larger |
| 3870 | 387000/100 | Larger |
Additional Information
Scientific Notation
3.87 can be written as 387 × 10⁻2 in scientific notation
Percentage
3.87 is equal to 387.000% as a percentage
Common Calculations with 3.87
Quick Reference Guide
Common calculations and conversions with 3.87
Multiplication
- 3.87 × 10 = 38.7
- 3.87 × 100 = 387
- 3.87 × 1000 = 3870
- 3.87 × 10000 = 38700
- 3.87 × 100 = 387
Division
- 3.87 ÷ 2 = 1.935
- 3.87 ÷ 5 = 0.774
- 3.87 ÷ 10 = 0.387
- 3.87 ÷ 1/3.87 = 100
3.87 in Different Number Systems
Decimal
3.87
Scientific Notation
387 × 10⁻2
Percentage
387.000%
Fraction
387/100
Parts Per Million
3870000 PPM
Binary
0.1000 0111
Real-World Applications of 3.87
Where You Might Encounter 3.87
Scientific Applications
- • Microscopic measurements (3870000 micrometers)
- • Chemical concentrations
- • Statistical probability calculations
- • Error margins in precise measurements
Engineering
- • Manufacturing tolerances
- • Electronic component specifications
- • Quality control measurements
- • Precision engineering