DECIMAL FRACTIONS

 

DECIMAL FRACTIONS

                                                                                                                                    

Fractions with 10 and its powers as denominator are called Decimal Fractions.

A fraction whose denominator is 10 or some positive integral power of 10 is called a decimal fraction.

Fraction having 10, 100, 1000,…. In the denominators are called Decimal Fractions.

Decimals:  The numbers written in the decimal form are called decimal numbers or simply decimals

Ex:  0.3,   23.325,   50.0231

4.1 is read four point one

12.05 is read twelve point zero five.

        The decimal number(decimal)  has two parts  whole number part and decimal part

        These  parts are separated by a dot(.) called decimal point

        The parts to the right of the decimal point is called the decimal part of the number  and the part to the left of the decimal point is called the integral part (whole number)

        The digits in decimal part are read individually (including zero) with out naming the places.

        The decimal part of the number is always less than one.

        If there is no number in whole number part, it should be taken as zero ‘0’

        For example    .7 can written as 0.7in 0.4 there is one decimal place.

Decimal Places:    The number of digits contained in the decimal part of a decimal gives the number of its decimal place.

 Ex:     2.75 has 2 deciml places                     

              32.7565 has 4 deciml places

Like decimals:   Decimals having the same number of decimal places are called like decimals

Ex:                 25.02,   and 4.83 are like decimals

Unlike  Decimals:  some given decimals all not  having the same number of decimal places, are called unlike decimals.

Ex:                 4.38 and 43.8 are unlike decimals.