Question

what must be multiplied with 5/7 to get 4 ? give me the full explanation please.​

Answer 1

Let the number be x.
ATQ,
5/7 * x = 4
x = 4 * 7/5 (Reciprocal)
x = 28/5


Thus, 28/5 must be multiplied by 4/7 to get 4. :)

Answer 2

$\huge\tt\colorbox{pink}{αղsաҽɾ}$

Let the number be x.

So according to the question,

$x \times \frac{5}{7} = 4 \\ \\ = > \frac{5x}{7} = 4 \\ \\ = > 5x = 7 \times 4 \\ \\ = > 5x = 28 \\ \\ = > x = \frac{28}{5} \\ \\ = > x = 5.6$

$\boxed{\red{So\: 5.6\:is \:the \:required\:number}}$

Verification of my answer :

5 / 7 * 5.6

= 5 / 7 * 56 / 10

= 280 / 70

= 28 / 7

= 4 [ hence proved ]

$\sf\colorbox{cyan}{Thank uH }$