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.
Proper fraction is an important type of fraction in an fractional chapter. Proper fraction consists of two terms that is numerator term and the denominator term. But the axiom that is given to the proper fraction is the numerator value is lower than the denominator value. If the axiom satisfies then it is known as the proper fraction.