Fractions, Decimals, and Number Structure Review

Vocabulary flashcards covering core math concepts from the lecture transcript, including fraction operations, lowest common denominators, extended number form, and decimal rounding.

Lowest Common Denominator (LCD)

The least common multiple of fraction denominators, determined by selecting the largest denominator and evaluating its multiples.

Division of Fractions

An operation where the first fraction is kept unchanged, the second fraction is flipped over, and the expression is converted into multiplication to simplify and reduce terms.

Extended Form

A expanded structural representation of a number that breaks down both whole and fractional portions into digits multiplied by place values, such as $8 \times 1000$ or $6 \times \frac{1}{10}$.

Commas in Large Numbers

Punctuation marks used within whole numbers to separate digits into groups of three for reading numbers in thousands and millions.

Rounding to One Decimal Place

The process of approximating a number to its first digit after the decimal point based on the value of the following digit.