# Math Brian Teaser I thought of

1. Jan 15, 2008

### Diffy

I recently thought of this brain teaser and was thinking that people where would enjoy.

1/2 - 1/4 = 3
1/30 - 2/5 = 7
3/4 - 3/10 = ?

Enjoy

Last edited: Jan 15, 2008
2. Jan 15, 2008

### Werg22

I can think of one pattern, which would give 7/9 as the answer, but 2 examples aren't enough for me to say. I'll try finding something else. And oh, who's Brian?

Last edited: Jan 15, 2008
3. Jan 15, 2008

### Diffy

Brian is a horrible speller!

4/5 - 5/6 = 32

4. Jan 18, 2008

### dsa

5. Jan 18, 2008

### Werg22

Sorry Diffy, I haven't had much time to look at it. I'll try to solve it by the end of the day.