Question

write -9/11 as a rational number with (a) numerator -18 (b) denominator - 55.
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Answer 1

$a) \: rational \: number \: = \frac{ - 9}{11} \\ numerator = - 18 \\ \frac{ - 9}{11} \times \frac{2}{2} = \frac{ - 18}{22} \\ b) \: rational \: number = \frac{ - 9}{11} \\ denominator = - 55 \\ \frac{ - 9}{11} \times \frac{ - 5}{ - 5} = \frac{45}{ - 55}$

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Answer 2

Answer:

a) -18/22

b) 45/-55

Explanation

a) -9/11 = -18/x

by using cross multiplication

-9×x= -18×11

-9x=198

x=198/-9

x=-22

-9/11 =-18/22

b)-9/11=x/-55

by using cross multiplication

-9×55= 11×x

11x= 495

x= 45

-9/11=45/-55

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