Eduardo owned 6/7 of a family business. He sold 1/5 of the business to his son. What portion of the business does he still own?

Is this correct

6/7 - 1/5 =

30/35-7/35=23/35

2 answers

yes, if he sold 1/5 of the whole business, not just the 6/7 he owned.
Yes, that is correct.