1. Understanding Fractions in Calculator

Fractions represent parts of a whole and are written as a ratio of two numbers (numerator/denominator). In calculators, they can be entered either using a dedicated fraction button or as division operations.

2. How To Enter Fractions

Windows Calculator Methods:

1. Fraction Button: In scientific mode, use the 'a b/c' button to enter fractions directly
2. Division Method: Enter numerator, then ÷ (division) key, then denominator
3. Decimal Conversion: Calculate numerator ÷ denominator first, then enter the decimal result

3. Fraction Mode vs Division

Key Differences:

• Fraction Mode: Preserves exact fractional representation (e.g., 1/2 remains 1/2)
• Division Mode: Converts to decimal immediately (e.g., 1/2 becomes 0.5)
• Precision: Fraction mode avoids rounding errors in exact calculations

4. Using This Calculator

Instructions: Enter any numerator and denominator (must be non-zero) to see the decimal value and simplified fraction. This helps understand how fractions convert to decimal values in standard calculators.

5. Frequently Asked Questions (FAQ)

Q1: Where is the fraction button in Windows Calculator?
A: In Scientific mode, look for the 'a b/c' button between 'x²' and '∠'.

Q2: How to enter mixed numbers?
A: In fraction mode: enter whole number, then 'a b/c', then numerator, then 'a b/c', then denominator.

Q3: Why does my calculator show decimals instead of fractions?
A: You're likely in standard mode. Switch to Scientific mode and use the fraction button.

Q4: How to convert a decimal back to fraction?
A: In Scientific mode, enter decimal then press 'F↔D' button to toggle between formats.

Q5: Can I do fraction calculations in Standard mode?
A: Yes, but you must use division (/) and will get decimal results only.