The number that is below 46.1979 exactly and without any rounding up is 46.1978.
The number that is below another will depend on the last digit of the original number.
That last digit determines the relative position of a number in the number line so it will give a clue to the number below it.
In the case of 46.1979, the last number is 0.0009 which means that the digit below this one is 0.0008.
The number below it would therefore be 46.1978.
Find out more on problems involving the relative position of numbers at https://brainly.com/question/17020364.
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