17 terms

redgemTEACHER

4th grade Common Core Math Vocabulary
Source: Granite School District, Utah

fraction

A way to describe a part of a whole or a part of a set by using equal parts. It is expressed as a numerator and a denominator.

improper fraction

A fraction that has a value equal to or greater than 1 whole .The numerator is greater than or equal to its denominator.

equivalent fractions

Fractions that have the same value.

unlike fractions

Fractions that have different denominators.

benchmark fraction

Fractions that are commonly used for estimation.

unit fraction

A fraction that has 1 as its numerator.

numerator

The number written above the line in a fraction. It tells how many equal parts are described in the fraction.

denominator

The quantity below the line in a fraction. It tells how many equal parts are in the whole.

common denominator

For two or more fractions, a common denominator is a common

multiple of the denominators.

multiple of the denominators.

like denominators

Denominators in two or more fractions that are the same.

unlike denominators

Denominators that are not equal.

decimal fraction

A fractional number with a denominator of 10 or a power of 10. Usually written with a decimal point.

simplify

To express a fraction in simplest form.

lowest terms

When a fraction is expressed with the fewest possible pieces, it

is in lowest terms. (Also called simplest form.)

is in lowest terms. (Also called simplest form.)

simplest form

When a fraction is expressed with the fewest possible pieces, it is in simplest form. (Also called lowest terms.)

mixed number

A number that has a whole number (not 0) and a fraction.

reasonableness

An answer that is based on good number sense.