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What is the reciprocal of 1/2?
2/1
What is the reciprocal of 3/5?
5/3
When you flip a fraction, what are you making?
the reciprocal
How do you divide fractions
keep, change, flip
What does KCF mean?
keep, change, flip
How do you multiply fractions?
To multiply fractions, you multiply across (numerator by numerator, denominator by denominator)
To add or subtract LIKE fractions, what do you do?
keep the denominator and add or subtract the numerators
When fractions have different denominators, what kind of fractions are they?
unlike fractions
When fractions have the same denominator, what kind of fraction are they?
like fractions
A fraction is a __________ of a ___________
A fraction is a PART of a WHOLE
Give an example of an improper fraction
student example
Give an example of a proper fraction
student example
What is an improper fraction?
when the numerator is bigger than the denominator = more than one whole
What is a proper fraction?
When the numerator is smaller than the denominator
2/5 Ă· 9 =
2/45
4/7 Ă· 3 =
4/21
2/8 Ă· 4/6 =
12/32 or 3/8
3/10 Ă· 1/2
6/10 or 3/5
2/3 - 1/5 =
7/15
1/2 - 1/6 =
4/12 or 1/3
9/10 - 2/10 =
7/10
5/11 - 2/11 =
3/11
1/7 x 4 =
4/7
4/9 x 2 =
8/9
2/5 x 2/3 =
4/15
4/7 x 2/3 =
8/21
1/6 + 2/3=
15/18 or 5/6
1/4 + 1/3=
7/12
2/7 + 2/7=
4/7
6/9 + 1/9 =
7/9
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