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Learning Targets. LT #1 : I can name fractions. Before: 1 2 3After: 1 2 3 1 = always 2 = sometimes 3 = not yet. 4NS1.5. I have these questions:. Learning Targets. LT #2 : I can find the least common denominator (also knows as the least common multiple). - PowerPoint PPT Presentation
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Learning Targets
• LT #1: I can name fractions.
Before: 1 2 3 After: 1 2 3
1 = always 2 = sometimes 3 = not yet
I have these questions: 4NS1.5
Learning Targets
• LT #2: I can find the least common denominator (also knows as the least common multiple).
Before: 1 2 3 After: 1 2 3
1 = always 2 = sometimes 3 = not yet
I have these questions: 6NS2.4
Naming Fractions
A Fraction
Shows ->
LT #1
Numerator
Denominator
Name the Fraction shown by the shaded part:
Name the fraction shown by the un-shaded part
Part
Whole
2
5
3
5
Multiple
The product of a whole number multiplied The product of a whole number multiplied times any other whole number.times any other whole number.
Name the first six multiples of 6
6, 12, 18, 24, 30, 36
Name the first six multiples of 5
5, 10, 15, 20, 25, 30
Common Multiple A Common Multiple is a number A Common Multiple is a number
that is a multiple of two numbers.that is a multiple of two numbers.Here are common multiples for the Here are common multiples for the
numbers 4 and 10numbers 4 and 10
10 = 10, 20, 30, 40, 50, 4 = 4, 8, 12, 16, 20, 24
Least Common Multiple Smallestnumber that a set of given numbers dividesevenly into.
LCM - Least Common Multiple -
It is useful to know how to do this so you can find a common denominator when comparing, adding or subtracting fractions.
LCM is also known as finding the Least Common Denominator
Least Common MultipleTO FIND THE LCM OF TWO TO FIND THE LCM OF TWO
NUMBERSNUMBERS
• Find the least multiple that both numbers have in common.
•List the multiples of both numbers
What is the Least Common Multiple of 6 & 8
8 = 8, 16, 24, 32, 40, 48 6 = 6, 12, 18, 24, 30, 36
Find the least common multiple for: 4 and 22
Find the least common multiple for 8 and 12.
THE END!Take out your
Learning Targets.
Naming Fractions
A Fraction
Shows ->
LT #1
Numerator
Denominator
Name the Fraction shown by the shaded part:
Name the fraction shown by the un-shaded part
Part
Whole
2
5
3
5
Least Common Denominator
TO FIND THE LCM OF 4 and 12:
2) Find the least (smallest) multiple that the numbers have in common.
1) Find the multiples of both numbers
4 = 4, 8, 12, 16, 20…12 = 12, 24, 36…
LCM is 12
Least Common Multiple is also known as LCD…the “D” standing for denominator
LT #2
Name___________October 15, 2012Period___
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