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3 years ago

How do u find equivalent fractions

Mathematics

2 answers:

adelina 88 [10]3 years ago

8 0

You can make equivalent fractions by multiplying or dividing both top and bottom by the same amount.

Kipish [7]3 years ago

5 0

You cross multiply
a c
- = -
b d
if ad equals bc, then the fractions are equivalent

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omeli [17]

Answer:

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Step-by-step explanation:

step 1

Find the circumference of the circle

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$C=2\pi r$

where

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we have

$r=7\ cm$

substitute

$C=2\pi(7)$

$C=14\pi\ cm$

step 2

Find the length of the given arc

we know that

The circumference of the circle subtends a central angle of 360 degrees

using proportion

Find out the length of the arc by a central angle of 315 degrees

Let

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$\frac{14\pi}{360}=\frac{x}{315}\\\\x=14\pi(315)/360\\\\x=\frac{4,410\pi}{360}\ cm$

Simplify

$\frac{49\pi}{4}\ cm$

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