Stats Calculator Online
Fractions Calculators
Add, subtract, multiply, divide, simplify, and convert fractions. Free tools on Stats Calculator Online with formulas, how-to steps, similar calculator widgets, tidbits, and exportable reports.
- Add Fractions CalculatorAdd two fractions and simplify
- Subtract Fractions CalculatorSubtract two fractions and simplify
- Multiply Fractions CalculatorMultiply two fractions and simplify
- Divide Fractions CalculatorDivide two fractions and simplify
- Simplify Fractions CalculatorReduce a fraction to lowest terms
- Compare Fractions CalculatorCompare two fractions
- Fraction to Decimal CalculatorConvert a fraction to decimal and percent
- Decimal to Fraction CalculatorApproximate a decimal as a fraction
- Mixed to Improper CalculatorConvert a mixed number to an improper fraction
- Improper to Mixed CalculatorConvert an improper fraction to a mixed number
Tidbits from Stats Calculator Online
Remember
Correlation is not causation
Pearson r measures linear association. Plot the scatter first, and prefer Spearman when the relationship is monotonic but not linear.
Correlation tools →Tidbit
Read confidence intervals carefully
A 95% CI means that in repeated sampling, about 95% of such intervals would cover the true parameter—not that this one interval has a 95% chance.
CI calculators →Free on every tool
APA write-ups and PDF exports
After you calculate, copy APA/AMA text or download CSV, Word, and print-ready PDF—no paywall on Stats Calculator Online.
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- Simple Linear Regression CalculatorRegression Analysis · Fit y = a + bx with inference
- Chi-Square Independence CalculatorHypothesis Testing · Test association in contingency tables
- Sample Size & Power CalculatorHypothesis Testing · Plan sample size for desired power