Chapter 3.2.

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Presentation transcript:

Chapter 3.2

Adding and Subtracting Like Fractions

Vocabulary Numerator:

Denominator:

Common Denominator:

Like fractions:

Draw it

Steps adding LIKE fractions Add the numerators Keep the denominator the same Simplify

Draw and add 5 9 + 2 9 = --

2 3 + 1 3 =

Add using the Integer rules 3 5 +(- 2 5 )=

Add using the Integer rules 4 7 +(- 3 7 )=

Subtracting Like Fractions Subtract the numerators Keep the denominator Simplify

Draw the fractions out and subtract 9 10 - 3 10 =

Draw the fractions out and subtract 5 8 - 3 8 =

Subtract using the Integer rules 6 8 –(- 2 8 )=

Subtract using the Integer rules 2 6 –(- 3 6 )=

Adding and Subtracting Unlike Fractions

Vocabulary Unlike fractions:

Greatest common denominator Least common denominator