If I own 7/8 of a business and I sell 1/5 of it. What portion do I still own?

Question

If I own 7/8 of a business and I sell 1/5 of it. What portion do I still own?

Answer 1

49/56

Answer 2

You need to get the same number on the bottom of each. The common denominator of 8 and 5 is 40.

To convert 7/8:

You need to multiply 8 by 5 to get 40 so therefore you also multiply 7 by 5, giving you 35. 7/8 = 35/40.

To convert 1/5 multiply above and below by 8 and you get 8/40.

The answer is 35/40 - 8/40 = 27/40.

Answer 3

27/40

Answer 4

7/8 - 1/5 * 7/8 =

= 7/8 - 7/40 =

= (35 - 7)/40 =

= 28/40 =

= 7/10