Lesson #4 title: PART 4 = Reducing (simplifying) fractions to lowest terms by DIVIDING BY A
COMMON FACTOR (CREATING EQUIVALENT FRACTIONS IS A LIFE SKILL!)
Date:
THROUGH-LINE: Image – reflecting God wonderfully and magnificently designed the human body in proportions.
3
A ratio is a relationship that exists between the amounts of TWO NUMBERS (example: 3 to 4; 3 : 4; fractional form ).
4
OUTCOMES:
1. Explain that equivalent fractions represent the same quantity. (gr5 POS)
2. Use a mathematical rule for developing a set of equivalent fractions. (gr5 POS)
3. Express a given fraction as a reduced (simplified) fraction in lowest terms (or simplest form) by
identifying the common factor shared with both the numerator and denominator (gr7 POS).
4. Explain why simplifying a fraction does not change the ‘value’ of the fraction.
MATERIAL NEEDED: highlighters, pencil, blue pen, ruler
QUICK REVIEW: Write each fraction as a % (humour me, and just solve ).
𝟏
𝟓
=
𝟐
=
𝟏𝟎
𝟑
𝟑
=
𝟐𝟎
=
𝟒
𝟐
𝟓
=
Example #1: Create equivalent fractions by REDUCING TO LOWEST TERMS (also called
simplest form).
STRATEGY: what FACTOR is COMMON TO BOTH the numerator and the denominator?
𝟓𝟎
𝟗
=
𝟏𝟎𝟎
𝟏𝟓
𝟕𝟓
𝟒
=
𝟏𝟎𝟎
𝟐𝟎
=
𝟓𝟎
𝟖
𝟏𝟎𝟎
=
=
𝟒𝟎
𝟏𝟎𝟎
𝟒
𝟏𝟓
=
𝟔
=
=
𝟓
𝟏𝟎
=
L4(2)
Example #2: (obtained from Eduguide 7 Supplemental Workbk, p.4)
Find equivalent fractions by REDUCING TO LOWEST TERMS.
SHOW YOUR DIVISION!
L4(3)
YOUR TURN  (obtained from Ms. T’s head)
L4(4)
YOUR TURN  (obtained from Ms. T’s head)
L4(5)
YOUR TURN  (obtained from Ms. T’s head)
L4(6)
YOUR TURN  (obtained from Ms. T’s head)
L4(7)
YOUR TURN  (obtained from Ms. T’s head)
L4(8)
YOUR TURN 
Find equivalent fractions by REDUCING TO LOWEST TERMS. Show division.
L4(9)
YOUR TURN 
Find equivalent fractions by REDUCING TO LOWEST TERMS. Show division.
L4(10)
YOUR TURN 
Find equivalent fractions by REDUCING TO LOWEST TERMS. Show division.