What is 1.38 as a Fraction?

Learn how to convert 1.38 to a fraction with step-by-step instructions

Quick Answer

1.38 as a fraction is:

69/50

This is the simplest form of the fraction

1.38 Decimal to Fraction Calculator

Convert Any Decimal to a Fraction

Enter a decimal number to see its fraction equivalent

How to Convert 1.38 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 1.38 to a Fraction

Let's apply the method to convert 1.38

1

Count the decimal places in 1.38

1.38
There are 2 digits after the decimal point
2

Multiply by 10 (100)

1.38 × 100 = 138
Moving the decimal point 2 places right
3

Write as a fraction

138/100
Numerator: 138, Denominator: 100
4

Simplify the fraction

138/100 = 69/50
Divide both numbers by their greatest common factor (2)

Final Result

1.38 = 69/50

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 1.38 often result in fractions with large denominators
DecimalFractionComparison
0.1386.9/50Smaller
1.3869/50Current Value
13.8690/50Larger
1386900/50Larger
138069000/50Larger

Additional Information

Scientific Notation

1.38 can be written as 69 × 10⁻2 in scientific notation

Percentage

1.38 is equal to 138.000% as a percentage

Common Calculations with 1.38

Quick Reference Guide

Common calculations and conversions with 1.38

Multiplication

  • 1.38 × 10 = 13.799999999999999
  • 1.38 × 100 = 138
  • 1.38 × 1000 = 1380
  • 1.38 × 10000 = 13799.999999999998
  • 1.38 × 50 = 69

Division

  • 1.38 ÷ 2 = 0.69
  • 1.38 ÷ 5 = 0.27599999999999997
  • 1.38 ÷ 10 = 0.13799999999999998
  • 1.38 ÷ 1/1.38 = 50

1.38 in Different Number Systems

Decimal

1.38

Scientific Notation

69 × 10⁻2

Percentage

138.000%

Fraction

69/50

Parts Per Million

1380000 PPM

Binary

0.0011 1000

Real-World Applications of 1.38

Where You Might Encounter 1.38

Scientific Applications

  • • Microscopic measurements (1380000 micrometers)
  • • Chemical concentrations
  • • Statistical probability calculations
  • • Error margins in precise measurements

Engineering

  • • Manufacturing tolerances
  • • Electronic component specifications
  • • Quality control measurements
  • • Precision engineering