## Why Convert Decimals to Fractions?
While calculators and digital tools often use **decimals**, many physical tools — such as tape measures, drill bits, and conduit benders — are marked in **fractions**.
Being able to convert between the two ensures accuracy when working with:
- Material measuring and cutting
- Converting meter readings into usable values
- Matching decimal-based specifications to fraction-based tools
## Step-by-Step: How to Convert
### Step 1: Identify the Place Value
Every decimal can be expressed as a fraction of 10, 100, 1000, and so on.
Example:
$0.75 = \frac{75}{100}$
### Step 2: Simplify the Fraction
$\frac{75}{100} = \frac{3}{4}$
## Common Decimal to Fraction Conversions
| Decimal | Fraction |
|---------|----------|
| 0.5 | 1/2 |
| 0.25 | 1/4 |
| 0.75 | 3/4 |
| 0.125 | 1/8 |
| 0.375 | 3/8 |
| 0.625 | 5/8 |
| 0.875 | 7/8 |
| 0.333 | 1/3 (approx.) |
| 0.666 | 2/3 (approx.) |
These conversions appear frequently in blueprints, schematics, and part specifications.
## Real-World Example: Conduit Stub Measurement
Suppose you measure **0.625 inches** on your digital caliper, but your bender uses fractional markings.
Convert:
$0.625 = \frac{625}{1000} = \frac{5}{8}$
You would mark your bend at **5/8 inch** so the physical work matches the digital reading.
## Try It Yourself
1. Convert 0.5 to a fraction.
2. Convert 0.875 to a fraction.
3. Convert 0.2 to a fraction and simplify.