HELP with float!!

Hi everyone...
if a is A is a float with four decimals, and B is other float with four decimals, and C = a/b;
if i print C in the lcd, it prints with two decimals... what can i do for print with four decimals??

Floating point numbers do not have a defined number of "decimals", however when you print them out, you can specify how many places after the decimal point (the default is 2). Consult the documentation for Serial.print or lcd.print for how to do that.

Serial.print(someFloat, 4);