Dr. Kat Math Practice

What Is a Fraction?

Lesson Page 1, Section 3

What you'll work on

Understand fractions as parts of a whole — the numerator counts the parts we have; the denominator counts the equal parts that make up the whole.

Big Idea for this lesson

$A circular pie divided into four equal slices, with three slices shaded warm amber and one slice shown as a light outline — representing 3 out of 4 parts.$

A fraction shows how many parts of a whole we have. The top number (numerator) tells how many parts we have; the bottom number (denominator) tells how many equal parts make up the whole.

5 questions · pace yourself · explanations on every answer

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