Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
1 Answer
- ?Lv 74 years agoFavorite Answer
Because dividing by 4 is the same as multiplying by 1/4
and multiplication is associative and commutative, i.e.
(a * b) * c = a * (b * c) = a * (c * b) = (a * c) * b
(a * b) * c = (a * c) * b
Let a = 3, b = y, c = 1/4
(3 * y) * 1/4 = (3 * 1/4) * y
(3y)/4 = (3/4)y
You can always check with a numeric example (although this is not a proof):
y = 20
(3y)/4 = (3*20)/4 = 60/4 = 15
(3/4)y = (3/4)*20 = 0.75*20 = 15
Pick any number for y. (3y)/4 will always be equal to (3/4)y
