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OpenStudy (anonymous):
What is the LCD for these fractions? 42/20 + 3/5
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hero (hero):
Well, actually, before you go about finding the LCD, you should reduce the first fraction.
OpenStudy (anonymous):
Lowest common denominator
hero (hero):
I know what an LCD is by the way.
hero (hero):
Reducing the first fraction is the first step to finding it
OpenStudy (anonymous):
Ok Lol.
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OpenStudy (anonymous):
is it 2.1?
OpenStudy (anonymous):
42/20 simp. is 2.1 right?
OpenStudy (anonymous):
2.1 = 2 + 1/10 = 2 1/10 It can also be written as the improper fraction
OpenStudy (anonymous):
21/10
hero (hero):
Yes, very good. So now we have... 21/10 + 3/5 Do you have an idea how to find the LCD?
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