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elena55 [62]
2 years ago
10

Which mixed number is equal to 18/8 2 6/9 2 5/8 2 1/4 1 2/8

Mathematics
1 answer:
Galina-37 [17]2 years ago
4 0

Answer: 2 1/4

Step-by-step explanation:

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Determine what must be multiplied so that the expression below will have a common denominator. Use the backslash / to type in a
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Answer:

Multiply the first fraction by \frac{x+4}{x+4}

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Step-by-step explanation:

Given

\frac{4}{x^2 - 16} + \frac{3}{x^2 + 8x + 16}

Required

Make the denominator equal

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Factorize the denominator

\frac{4}{x^2 - 4^2} + \frac{3}{x^2 + 4x + 4x+ 16}

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Multiply the first fraction by \frac{x+4}{x+4}

Multiply the second fraction by \frac{x-4}{x-4}

\frac{x+4}{x+4} * \frac{4}{(x - 4)(x + 4)} + \frac{3}{(x+ 4)(x + 4)} * \frac{x-4}{x-4}

\frac{4(x + 4)}{(x - 4)(x + 4)(x + 4)} + \frac{3(x - 4)}{(x+ 4)(x + 4)(x - 4))}

\frac{4(x + 4)}{(x^2 - 16)(x + 4)} + \frac{3(x - 4)}{(x^2 - 16)(x + 4))}

<em>The expression now have the same denominator</em>

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3 years ago
If 10% of my money is $15, then what is 40% of my money?
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