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decimal notation for 4 3/10 = 4.30
One fourth, or 1/4. Also 0.25, in decimal notation.
9.812x10-4 is the scientific notation. The decimal moves four times to the right.
0.0004
It means that a number expressed as a decimal notation isn't being expressed as a fractional notation. 0,25 and 1/4. ( Both represent the same) (It's easier to work on fractional notation although the results are the same.) 5/165 = 0,0303030303030303030303030303030..................... In this example the decimal notation has an infinite length, but you can cut the unnecessary decimal figures= 0,030