Confidence votes 978. The range of 60-70 decibels sound pressure level is about as loud as normal conversation in 1 meter distance. The distance from the ears to the sound source is very important to the value of the SPL.
A fraction (from Latin fractus, broken) represents a part of a whole or, more generally, any number of equal parts. When spoken in everyday English, a fraction describes how many parts of a certain size there are, for example, one-half, eight-fifths, three-quarters.
Princeton's WordNet(2.00 / 4 votes)Rate this definition: 1  fraction(noun) a component of a mixture that has been separated by a fractional process. 2  fraction(noun) a small part or item forming a piece of a whole. 3  fraction(verb) the quotient of two rational numbers. 4  divide, fraction(verb) perform a division.