Question

A + 1 by a is equals to 5 by 2 find a minus 1 by a

Answer 1

$\frac{a + 1}{a} = \frac{5}{2} \\ have \: to \: find \: \frac{a - 1}{a} \\ from \: given \: eq. \\ a + 1 = 5 \frac{a}{2} \\ 2a + 2 = 5a \\ 3a = 2 \\ a = \frac{2}{3 } \\ have \: to \: find \: \\ \frac{a - 1}{a} \\ directly \: put \: value \: of \: a \\ \frac{ \frac{2}{3} - 1 }{ \frac{2}{3} } = \frac{(2 - 3)}{2} = \frac{ - 1}{2}$