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Simplifying Fractions Lesson 4-4

Simplifying Fractions Lesson 4-4. Math Vocabulary… Reduce / Simplify fractions : Means to make a fraction “smaller” in number, by division

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Page 1: Simplifying Fractions Lesson 4-4. Math Vocabulary… Reduce / Simplify fractions : Means to make a fraction “smaller” in number, by division

Simplifying FractionsLesson 4-4

Page 2: Simplifying Fractions Lesson 4-4. Math Vocabulary… Reduce / Simplify fractions : Means to make a fraction “smaller” in number, by division

Math Vocabulary…

Reduce / Simplify fractions :

Means to make a fraction “smaller” in number, by division

Page 3: Simplifying Fractions Lesson 4-4. Math Vocabulary… Reduce / Simplify fractions : Means to make a fraction “smaller” in number, by division

What is Simplest Form?

When the top (numerator) and bottom (denominator) have no factors in common and cannot be further divided and made

smaller.

15 = 3 35 7

Page 4: Simplifying Fractions Lesson 4-4. Math Vocabulary… Reduce / Simplify fractions : Means to make a fraction “smaller” in number, by division

Checklist to Simplifying…

÷ by top # (should always try 1st)

÷ by 2 (if both #s are even)

÷ by 10 (if both top/bottom end in 0)

÷ by 5 (if both top/bottom end in 5 or 0)

÷ by GCF *(should try if recognize none of the above work)

Page 5: Simplifying Fractions Lesson 4-4. Math Vocabulary… Reduce / Simplify fractions : Means to make a fraction “smaller” in number, by division

Simplify the Fraction

8 = 12

6 = 8

28 = 35

Page 6: Simplifying Fractions Lesson 4-4. Math Vocabulary… Reduce / Simplify fractions : Means to make a fraction “smaller” in number, by division

Simplifying Fractions with Variables…

Simplifying with variables can be done by “cancelling” out top/bottom pairs:

x = xy

m³ =m²n

3 ab² =12 abc

Page 7: Simplifying Fractions Lesson 4-4. Math Vocabulary… Reduce / Simplify fractions : Means to make a fraction “smaller” in number, by division

Practice…Simplify the fraction…

a) 9 12

b) b abc

c) 2mn 6m

d) 24x²y 8xy

Page 8: Simplifying Fractions Lesson 4-4. Math Vocabulary… Reduce / Simplify fractions : Means to make a fraction “smaller” in number, by division

Homework…

p. 188-189#6-10, 18-35, 45-48