Knowledge base

Everyday Math

Fractions, ratios, percentages and the arithmetic that shows up in daily life.

2 articles · updated regularly

Ratios and proportions, without the confusion

How to read a ratio, simplify it, compare part-to-part and part-to-whole, and use proportions to scale recipes, maps and prices.

In plain English

How to read a ratio, simplify it, compare part-to-part and part-to-whole, and use proportions to scale recipes, maps and prices.

Numerators, denominators, equivalent fractions, addition, multiplication and the common mistakes that make fractions feel harder than they are.

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