Most People Get This Simple Math Question Wrong!

Added: 2026-05-06

[00:00:00]Hey guys, welcome to this video. In this video we want to find the value of this expression. 5 / 1 / 5 then * 5. Are you ready to solve? Let's go down and get started. First we do this multiplication. 1 / 5 * 5.

[00:00:17]We can easily cancel this five and this five, so here we have just one.

[00:00:22]And the 5 / 1 = 5. But this answer is not correct because according to the order of operations, multiplication and division have equal priority and we have to work from left to right.

[00:00:40]So here first we have to do this division, then this multiplication. If we do this multiplication before this division, it is wrong.

[00:01:03]So first we have to do this division. 5 / 1 / 5.

[00:01:08]According to the KCF rule, K stands for keep, C stands for change, and F stands for flip.

[00:01:14]We [snorts] can write keep the first fraction, change division to multiplication, and flip the second fraction.

[00:01:21]And here we have * 5.

[00:01:25]Now we do this multiplication. 5 * 5 gives us 25.

[00:01:31]So 25 * 5 which equals 5 * 5 gives us 25. So we write 5 here and carry 2 here.

[00:01:45]5 * 2 = 10 and 10 + 2 gives us 12. So we have is our final answer to this problem.

[00:01:57]The correct answer is 125.