Question

if I take 7/8 teaspoon of medicine every day how much medicine will I have taken in a week

Answer 1

If you take 7/8 teaspoon of a medicine every day. So in a week you would have 7/8 times 7 = 6 1/8 teaspoon of medicine. 

Answer 2

Try this 7x7=49 so divide 49 by 7 and you'd still get 7/8