Mixed NumbersDate: 03/20/2001 at 15:09:35 From: erica Subject: Mixed numbers I am having trouble with mixed numbers. Is there an easy way to remember how to do them? Date: 03/21/2001 at 13:52:31 From: Doctor Patti Subject: Re: Mixed numbers Hello Erica, Thank you for writing to Dr. Math. Let's look at a mixed number. 2 5 --- 3 We know that 3 1 = --- 3 So, 5 = 1 + 1 + 1 + 1 + 1 3 3 3 3 3 = --- + --- + --- + --- + --- 3 3 3 3 3 15 = ---- 3 Therefore 2 15 2 5 --- = ---- + --- 3 3 3 17 = ---- 3 Is there a general rule that you can follow to come up with this number? Yes. 2 3 * 5 + 2 5 --- = ------------ 3 3 15 + 2 = --------- 3 17 = ---- 3 In general, the mixed number B A --- C can be expressed as the improper fraction B C * A + B A --- = ----------- C C I hope this helps. Please write back if you have any other questions. - Doctor Patti, The Math Forum http://mathforum.org/dr.math/ |
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