# If isblank or equals zero

#### Asw091

##### New Member
Hi guys,

I hope you can help,

Im trying to achieve something here that I just cant seem to get my head around.

I want it to work out what i8/i7 is, but only if both of them have a value. I have a working formula for that. =IF(OR(ISBLANK(I7),ISBLANK(I8)),,I8/I7)

However when theyre both showing 0, it returns #DIV/0! Because it cant divide two zeros.

How can I put if I7 or I8 is blank or if I7+I8=0, ignore the formula otherwise do I8/I7?

Ultimately, I would like a formula that says if either cell is blank show 0, if the sum of both are equal to or less than 0, show 0, if they total more than 0, show the number.

Is this possible or am I asking too much?

I hope this makes sense.

Any help would be greatly appreciated.

Thanks.

### Excel Facts

Can a formula spear through sheets?
Use =SUM(January:December!E7) to sum E7 on all of the sheets from January through December

#### Trebor76

##### Well-known Member
Hi Asw091,

Here's two possibilities, I'm sure there's more:

=IF(OR(ISNUMBER(I7)=FALSE,ISNUMBER(I8)=FALSE),0,I8/I7)
=IFERROR(I8/I7,0)

HTH

Robert

#### Rick Rothstein

##### MrExcel MVP
It is the bottom number that cannot be 0 (dividing by 0 is undefined)... the top number is immaterial. So you might consider doing it this way...

=IF(I7=0,"",I8/I7)

Last edited:

#### MARK858

##### MrExcel MVP
Ultimately, I would like a formula that says if either cell is blank show 0, if the sum of both are equal to or less than 0, show 0, if they total more than 0, show the number.
Another possibility maybe...

#### Asw091

##### New Member
It is the bottom number that cannot be 0 (dividing by 0 is undefined)... the top number is immaterial. So you might consider doing it this way...

=IF(I7=0,"",I8/I7)

? no way. Talk about over thinking it..

Thank you.