To find a COMMON DENOMINATOR of two fractions we have to find: A) the greatest common factor of the denominators B) the least common multiple of the denominators C) the product of the numerators
B) the least common multiple of the denominators
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10
What are unlike fractions?
Fractions who have different denominators.
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banana
Go to last place!
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star
Double points!
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fairy
Take points!
5
10
15
20
25
banana
Go to last place!
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20
1/2 + 2/5
9/10
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thief
Give points!
5
10
15
20
25
gold
Win 50 points!
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rocket
Go to first place!
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banana
Go to last place!
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15
What is the least common multiple of 5 and 15?
15
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20
Solve: 1/5 + 1/3 =
8/15
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15
What is the least common multiple of 4 and 6?
12
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15
Simplify the fraction 4/16
1/4
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15
What is the least common multiple of 2 and 3?
6
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20
5/12 + 1/4 = 8/12. Is the answer in simplest form? Explain.
