Question

1. What should be added to -2/3 to get -5/-8​

Answer 1

Answer:

The number that should be added is $\frac{31}{24}$.

Step-by-step explanation:

Let the number x be added to $-\frac{2}{3}$ to get $\frac{5}{8}$.

Compute the value of x as follows:

$-\frac{2}{3}+x=\frac{5}{8}\\x=\frac{5}{8}+\frac{2}{3}\\=\frac{15+16}{24} \\=\frac{31}{24}$

Thus, the number that should be added is $\frac{31}{24}$.

Answer 2

Answer:

let x be the unknown value

$\frac{ - 2}{3} + \: x \: = \frac{ - 5}{ - 8}$

$x = \frac{ - 5}{ - 8} + \frac{2}{3}$

cross multiplication

$x = \frac{ - 15 - 16}{ -24}$

$x = - \frac{ - 31}{ - 24}$

cancelling -

x =31/24

hope it helps u