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Mathematics 20 Online
OpenStudy (anonymous):

how do u simplify mixed numbers

OpenStudy (anonymous):

Find the lowest common denominator :)

OpenStudy (anonymous):

Or do you mean mixed fractions?

OpenStudy (anonymous):

mixed number like 3 3/8 + 15 15/6

OpenStudy (anonymous):

You would times 8 by 3 and add 3 and put that number on the top of 8. Then you would times 6 by 15 and add 15 and put it over 6. Then find a common denominator which would be 24. Then add the numerators! Ta dah!

OpenStudy (anonymous):

So your answer would be 501/24. Make sense? Make sure to times the numerator by how many times your times the denominator was times to make it common.

OpenStudy (anonymous):

1)First turn all the numbers in the equation into fractions $$A \quad \dfrac{B}{C}=\dfrac{A*C+B}{C}$$ 2)Then find the lowest common denominator(LCD) of all the fractions you need to add or to substract $$\dfrac{A_1}{B_1}+\dfrac{A_2}{B_2}=\dfrac{A_1*\dfrac{LCD(B_1,B_2)}{B_1}+A_2*\dfrac{LCD(B_1,B_2)}{B_2}}{LCD(B_1,B_2)}$$ or simply do this $$ \dfrac{A_1}{B_1}+\dfrac{A_2}{B_2}=\dfrac{A_1*B_2+A_2*B_1}{B_1*B_2}$$ But if you choose the second way after adding you might need to reduce the fraction you got.

OpenStudy (anonymous):

they say the answer is 4

OpenStudy (anonymous):

i do not get how they get that answer

OpenStudy (anonymous):

3 3/8+15 15/6=(24+3)/8+(90+15)/6=27/8+105/6=(81+420)/24=501/24=67/8

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