So do you want it to look like this?
=Sum((INT(A1)+ROUND(MOD(A1,1)*100/60,2))+B1)
or what?

Holsapple wrote:
I need to know if or how I can add to an exsisting formula. I have currently
=SUMA1+B1 I need to add
=INT(A1)+ROUND(MOD(A1,1)*100/60,2)