Question

the sum of two rational number is minus 3 by 5 if one of the number is minus 9 by 20 find the other number​

Answer 1

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The sum of two rational number is minus 3 by 5 if one of the number is minus 9 by 20 find the other number.

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Sum of two of Rational Number⇒$\frac{-3}{5}$

$One\:Number\:is ⇒\frac{-9}{20}$

$Let\:second\:number ⇒ x$

A.T.Q : -

$x + \frac{-9}{20}⇒\frac{-3}{5}$

$x = \frac{-3}{5}-\frac{9}{20}$

Taking L.C.M of the denominators:.

$L.C.M. ⇒ 5×2×2$

$x=\frac{-12-9}{20}$

$x⇒\frac{-21}{20}$

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Hence, Second number is $\frac{-21}{20}$