Verified answer

= 7/9 - (- 13/18)

= 14/18 + 13/18

= 27/18 or (27/9)/(18/9)

= 3/2 or 1 1/2

Answer: 3/2 or 1 1/2

7/9 - (-13/18)

= 7/9 + 13/18

= (7 x 2)/(9 x 2) + 13/18

= 14/18 + 13/18

= 27/18

= (27/9)/(18/9)

= 3/2

First find the lowest common denominator:

7/9 - (-13/18) = 14/18 - (-13/18)

Next, drop the double negative:

14/18 + 13/18

Then add the numerators:

27/18

Then add one whole for each 18 you subtract from the numerator

1 9/18

Then reduce to the lowest possible denominator

1 9/18 = 1 1/2

PS: Hey, Ano. You're a jerk and that's uncalled for. Get a life!

14/18 + 13/18 equal 27/18 or 1 1/2