Decimal Fractions
Fractions in which denominators are powers of 10 are known as decimal fractions.
Thus, 110 = 0.1 = 1 tenth; 98100 = 0.98 = 98 hundredths; etc.
Conversion of a Decimal into Vulgar Fraction
Put 1 in the denominator under the decimal point and annex with it as many zeros as is the number of digits after the decimal point. Now, remove the decimal point and reduce the fraction to its lowest terms.
Thus, 0.20 = 20100 = 15; 9.075 = 90751000 = 36340
Annexing Zeros and Removing Decimal Signs
Annexing zeros to the extreme right of a decimal fraction does not change its value.
Thus, 0.7 = 0.70 = 0.700, etc.
If numerator and denominator of a fraction contain the same number of decimal places, then we can remove the decimal sign.
Thus 2.713.41 = 271341