In a fraction, the denominator tells us how many parts the whole is divided into, and the numerator tells us how many of those parts we're dealing with. To review the parts of a fraction, move your mouse cursor over the fraction below.

 

 

 

Here are some other important fraction terms to review:

Proper fraction: numerator is less than the denominator.

Improper fraction: numerator is greater than or equal to denominator.

Mixed number: whole number and a fraction.

Equivalent fractions: fractions that represent the same
number.

Reciprocal: the multiplicative inverse of a number. For a fraction, it's obtained by "turning the fraction over".