Answer:
3/5
Explanation:
You have a 20 ounce bottle. You pour out 1/4 of it.
20 x 1/4 = 20/4 = 5 You pour out 5 ounces.
20 - 5 = 15 ounces
If you pour out 3 ounces for yourself, 15 - 3 = 12
what fraction of the 20 ounces (original or total amount) will be left in the bottle?
12 ounces is left after pouring out 1/4 of the bottle for your friend and 3 ounces for yourself. 20 ounces was the total amount you first had in the bottle. The fraction that is left is calculated by dividing the amount left (12) by the total (20)
12/20 BUT each number can be divided by/reduced by 4, so dividing each number by 4 (12/4 = 3, 20/4 =5) gives 3/5.
3/5