Question

what number should be subtracted from -8/15 so as to get-5/6​

Answer 1

$</p><p>Let \: the \: number \: to \: be \\ \: substracted \: be \: x ,\\ \\ ∴( \frac{ - 8}{15} ) - x = ( \frac{ - 5}{6} ) \\ \\ ∴\frac{( - 8) -( 15x)}{15} = ( \frac{ - 5}{6} ) \\ \\∴ ( - 8) - (15x) = ( \frac{ - 5}{6} ) \times 15 \\ \\ ∴( - 8) - (15x) = \frac{( - 5) \times 15}{6} \\ \\ ∴( - 8) - (15x) = \frac{( - 75)}{6} \\ \\ ∴(- 15x) = (- 12.5) + 8 \\ \\∴ (- 15x) = (- 4.5) \\ \\ ∴x = \frac{( - 4.5)}{ (- 15)} \\ \\∴ x = \frac{3}{10 }$