Respuesta :

howlnight10

Answer:

No 4 is easy you get 2/3

My explanation is just make the denominator the same which is 13/6 - 9/7

13 x 7/6x7 - 9x6/7x6

The answer it its 91/42 - 63/42

=28/42

If you simply it it would be 2/3

(/ this means by) sorry for my bad explanations