Hello Chetan,
Could you help us confirm what example are you using and for which SDK version please?
In the [ble_shell] example from the KW45 SDK, values are printed to the terminal using the function [SHELL_PrintfSynchronization], which is defined in [ble_shell.h].
To print integer values, the SDK uses [shell_writeDec], which internally calls [FORMAT_Dec2Str] to convert integers into strings. This conversion process is implemented in [fsl_format.c].
Using this approach as a reference, you could apply a similar method to convert floating-point values to strings and send to terminal.
Hope this information work for you.
Best Regards
Luis