What happens if I enter a zero denominator?
The calculator blocks invalid fractions by marking the result as undefined until both denominators are non-zero.
Step-by-step walkthrough
Fraction Calculator Guide
Use this companion guide beside the interactive calculator to make sure you understand the “why” behind every click. Each section includes the classroom explanation, student-friendly language, and quick practice prompts.
Before you start
Collect the data points listed below and double-check their units. Keeping an organized “givens” list is one of the fastest ways to reduce math errors and impress exam graders.
- rational
- fraction
- simplify
Detailed procedure
Step 1
Enter the numerators and denominators for Fraction A and Fraction B.
Step 2
Pick the operation (add, subtract, multiply, divide).
Step 3
Review the simplified fraction and decimal approximation in the results panel.
Teaching & troubleshooting tips
Does the tool reduce improper fractions?
Yes. Every result is simplified—improper fractions remain improper but are presented in lowest terms alongside a decimal.