Question

What number should be added to -5/12 to get -7/9

Answer 1

Answer:

Let the number to be added by x.

or, (-5/12) +x = (-7/9)

or, x = (-7/9) - (-5/12)

or, x = -13 / 36

Step-by-step explanation:

Answer 2

Answer:

To get -7/9, -13/36 should be added to -5/12.

Step-by-step explanation:

Solution:

Suppose x should be added to -5/12 to get -7/9.

Then,

x + ( - 5/12) = - 7/9

⇒x - 5/12 = -7/9

Taking L.C.M

⇒12x-5/12 = - 7/9

On cross-multiplication,

⇒9(12x - 5) = 12 × -7

⇒108x-45= - 84

⇒108x=- 84+45

⇒x=-39/108

⇒x = - 13/36

Hence, -13/36 should be added to -5/12 to get -7/9.