Question

The product of two rational number is5/8
if one number of them-3/20, find the other.​

Answer 1

Answer:

We know that the product of two rational numbers is \frac{5}{18}

18

5

let us assume that the two irrational numbers are \frac{p}{q}

q

p

and \frac{a}{b}

b

a

now, given that one of the rational numbers is \frac{-3}{20}

20

−3

let us take \frac{p}{q}

q

p

as \frac{-3}{20}

20

−3

then,

\frac{a}{b}

b

a

x \frac{p}{q}

q

p

= \frac{5}{18}

18

5

\frac{a}{b}

b

a

x \frac{-3}{20}

20

−3

= \frac{5}{18}

18

5

\frac{a}{b}

b

a

= \frac{5}{18}

18

5

x\frac{20}{-3}

−3

20

\frac{a}{b}

b

a

= \frac{5}{9}

9

5

x \frac{-10}{3}

3

−10

= \frac{-50}{21}

21

−50

so, \frac{a}{b} = \frac{-50}{21} (or) \frac{8}{21} +(-2)

b

a

=

21

−50

(or)

21

8

+(−2)

Answer 2

Step-by-step explanation:

Answer will be - 25/6...