Question

the product of two rational numbers is 1/5. one of them is 4/5. find the other number

Answer 1

${\red{\bf{\huge{Smile!}}}}$

${\underline{\blue{Solution:}}}$

Let the unknown number be x,

$x \times \frac{4}{5} = \frac{1}{5} \\ \frac{4}{5} x = \frac{1}{5} \\ 4x = 1 \\ x = \frac{1}{4}$

Therefore the answer is,

${\boxed{\green{\bf{1/4}}}}$

${\red{\bf{\huge{Thanks!}}}}$

Aami_21❤✨

Answer 2

Hey

$let \: the \: unknown \: number \: be \: x \\ \\ according \: to \: given \: condition \\ \frac{4}{5} \times x = \frac{1}{5 } \\ \\ = > x = \frac{ \frac{1}{5} }{ \frac{4}{5} } \\ \\ = > x = \frac{1}{5} \times \frac{5}{4} = \frac{1}{4} \\ \\ the \: number \: is \: \frac{1}{4}$

I hope it helps you!!!