Freqs used to be given in decimals, quite redundant. Altimeter setting in inches of mercury (QNH) cannot be anything other than values such as 2992, or 3014, or 3000, or 2898, I say again 2898. It has to be repeated above and below certain parameters. Been that way for a couple of decades...The decimal is understood and redundant. Same as VHF Freqs. Yawn.