Question

what rational number should be added to -5/11 to get -7/8

Answer 1

Let the rational number be x

• sum is given as 2/3

So,

$x + ( -7 /15 ) = 2/3</p><p></p><p></p><p>x + \frac{ - 7}{15} = \frac{2}{3} </p><p></p><p></p><p>x = \frac{2}{3} + \frac{7}{15} </p><p></p><p></p><p>x = \frac{10 + 7}{15} </p><p></p><p></p><p>x = \frac{17}{15}$

Answer 2

Answer:

Let added rational no. be x

-5/11+x=-7/8

x=5/11-7/8

x=(40-77)/88

x=-37/88

-37/88 will be added