Question

3.9999..... in p/q form is _________

Answer 1

Answer:

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Answer 2

Answer:

3.9 bar in p/q form

let X = 3.9999999--------(1)

bar is for one digit

so multiply 10 on both sides

10 × X = 10 × 3.9999------

10x = 39.99999------(2)

eq (2) - eq (1)

10x = 39.99999-----

(-)X = 3.9999-------

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9x = 36.0000---------

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9x = 36

X = 36/9

X = 4 in p/q form 4/1