Mathematics: Fractions, Decimals, Percentages, and Metric Conversions

A collection of vocabulary flashcards to help understand key concepts in fractions, decimals, percentages, and metric conversions.

Improper Fraction

A fraction where the numerator is greater than the denominator.

Mixed Number

A whole number combined with a proper fraction.

Lowest Common Denominator (LCD)

The smallest number that can be a common denominator for two or more fractions.

Multiplying Fractions

To multiply two fractions, multiply the numerators and multiply the denominators.

Keep, Change, Flip Method

A method for dividing fractions: keep the first fraction, change the division sign to multiplication, and flip the second fraction.

Percentages

A way of expressing a number as a fraction of 100.

Converting Decimals to Fractions

To convert a decimal to a fraction, write the decimal over 1, multiply the numerator and denominator by 10 for each digit after the decimal.

Equivalent Fractions

Different fractions that represent the same value.

Ratios

A relationship between two numbers that shows how many times the first number contains the second.

Reducing Fractions

The process of simplifying fractions to their lowest terms.

Cancellation in Multiplying Fractions

A technique to reduce fractions before multiplying by dividing common factors.

Converting Fractions to Percentages

Convert a fraction to a decimal and then multiply by 100 to get the percentage.