Replace 0 value with <1

[AMCM0806]

Hi all, 

I have a data set that I would like to replace 0's with <1. However, this column includes numbers like 10, 20, 30, etc. so the replace formula is changing 10 to 1<1. Is there a formula that will look for isolated 0's? 

Replace([Runway in years], "0", "<1") 

[binu_acs · Accepted solution]

@AMCM0806  some thing like this?

[nagakavyasri]

@AMCM0806 

[AMCM0806]

This was the simpler solution that worked. Thank you!