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Fraction Basics: Understanding Numerators and Denominators

Learn the fundamentals of fractions with Mr. Frankel in June 2004. Understand what fractions represent in terms of parts of a whole or a group, and how to notate them using numerators and denominators. Explore fraction models using circles and rectangles to visualize different fractions.

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Fraction Basics: Understanding Numerators and Denominators

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  1. Fraction Basics Mr. Frankel June 2004 1/4 1/2 1

  2. What Is a Fraction? A fraction names a piece of a single thing. • This is one-half of a cookie. • A fraction names a part of a group of things. • One-third or 1 out of 3 cookies are chocolate chip.

  3. Fraction Notation A fraction is a number used to name a part of a group or a part of a whole. The number above the bar is the numerator. The number below the bar is the denominator. The fraction one-fourth is written like this: This is the numerator. 1 4 This is the denominator.

  4. Fraction Models Fractions can be shown as parts of a circle Here is 1/4 of a circle. 1 out of 4 parts is shaded in, so we say one-fourth. or as parts of a rectangle. Here is 3/4 of a rectangle. 3 out of 4 parts are shaded in, so we say three-fourths.

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