Decimals Fractions whose denominators are 10,100,1000, .... are called decimal fractions. The absence of the denominator is indicated by a dot, called the decimal point, inserted in the proper place. For example
Decimal System Consider 777. ; each 7 has value 10 times more than the next 7 to its right. After each unit digit if we put the decimal point and continue the same number 7 to the right, we get 777.7, 777.77, 777.777 … etc. Still each 7 will be 10 times the value of next 7 to its right. The place after the decimal point is the 10th place, then 100th place and so on so forth. This is the "decimal system". 
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