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igomit [66]
2 years ago
9

Work out 5/8−2/5 Give your answer in its simplest form.

Mathematics
1 answer:
Inessa05 [86]2 years ago
7 0
\frac{5}{8} -  \frac{2}{5}

First, find the LCD (least common denominator) of the two fractions.
List the multiples of each denominator and find the one that is common.
Multiples of 8: 8, 16, 24, 32, 40
Multiples of 5: 5, 10, 15, 20, 25, 30, 35, 40
40 is your LCD.

Second, what can you divide by to make the denominators of each fraction '40'? Whatever you do to the bottom you must do to the top.
\frac{5*5}{8*5} - \frac{2*8}{5*8}

Third, multiply.
\frac{25}{40} - \frac{16}{40}

Fourth, since the denominators are the same now, we can combine them.
\frac{25-16}{40}

Fifth, subtract '25 - 16' to get 9.
\frac{9}{40}

Since \frac{9}{40} is already in the simplest form, it is your answer.

Answer as fraction: \frac{9}{40}
Answer as decimal: 0.225




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3 years ago
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Answer:

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The equation of a circle in standard form is

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here (h, k) = (5, - 3) and r = 4, thus

(x - 5)² + (y - (- 3))² = 4², that is

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3 years ago
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