Question

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Express 3.12 in p/q form

Answer 1

$3.12 = \frac{312}{100} \\ by \: cancellating \: \frac{312}{100} \\ \\ \frac{312}{100} = \frac{78}{25}$

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Answer 2

Answer:

put x=3.12

x=3.12-(1)

multiply (1) to 100

100x=312-(2)

subtract eq 1 from eq 2

after subtracting

99x=308.88

x=308.88/99

x=3.12