Question

what should be subtracted from the product of 3/7 and -5/18 to get 5/42

Answer 1

Hey there!!

Let the number be x which should be subtracted from the product of 3/7 and -5/18 to get 5/42.

=) [(3/7) * (-5/18)] - x = 5/42

=) - 5/42 - x = 5/42

=) - 5/42 - 5/42 = x

=) - 10/42 = x

=) - 5/21 = x

To check :

=) (3/7) * (-5/18) - (-5/21) = 5/42

=) - 5/42 + 5/21 = 5/42

=) 5/42 = 5/42

=) Lhs = Rhs

Hence x = - 5/21

Hope it helps uh!!

Answer 2

$\huge \bf{hey}$


$\huge{ \mathfrak{here \: is \: answer}}$


let the number be x which should be subtracted from the product of 3/7 and -5/18 to get 5/42

hence


$\frac{3}{7} \times \frac{ - 5}{18} - x = \frac{5}{42}$


$= \: \frac{ - 5}{42} - x = \frac{5}{42}$


$= \: \frac{ - 5}{42} - \frac{5}{42} = x$


$= \frac{ - 10}{42} = x$

$= \frac{ - 5}{21} = x$

$\bf{hence \: \frac{ - 5}{21} \: is \: answer}$


$\huge{hope \: it \: helps}$
$\huge{ \mathbb{THANKS}}$