Lesson: Simplifying Fractions Using Common Factors Mathematics • 4th Grade

In this lesson, we will learn how to find the simplest form of a proper fraction by dividing the numerator and denominator by a common factor.

Lesson Plan

Students will be able to

understand that a fraction is in its simplest form when the only common factor is 1,
identify fractions in their simplest form,
find a proper fraction in its simplest form by dividing the numerator and denominator by one or more common factors.

Q1:

30 pupils out of a class of 50 pupils went on a trip. What fraction of the class went on the trip?

Q2:

Fourteen of the top thirty all-time grossing children’s films were animated films. Write as a fraction in its simplest form.

Q3:

A new TV channel has 27 new TV shows scheduled to air this week. What fraction of the scheduled shows, in the simplest form, are 30-minute shows?