In calculating numeric expressions involving decimal numbers, we follow the same rules as for expressions with fractional numbers.

In expressions containing fractions and decimal numbers, we must work by transforming all terms into one type of rational number. Example:

= 0,05 + 0,2 ยท 0,16 : 0,4 + 0,25

= 0,05 + 0,032 : 0,4 + 0,25

= 0,05 + 0,08 + 0,25 = 0,38

In expressions containing tithes, we must immediately determine their generatures. Examples: