To read a decimal, say the number to the left of the decimal point as a whole number. Use the word "and" to indicate the decimal point. Read the number to the right of the decimal point as a whole number, ending with the place value of the last digit.Continue Reading
For example, if the number is 3489.721, read the number 3489 as a whole number indicating place value by saying "three thousand, four hundred, eighty-nine."
After reading the number to the left of the decimal point, say the word "and" as a bridge between the whole number on the left side and the decimal fraction on the right side.
In the example, 3489.721, read 721 as if it were a whole number with no decimal point by saying "seven hundred twenty-one."
Finish saying the decimal by indicating the place value of the digit furthest to the right of the decimal point. In the example, 3489.721, the place value of the digit 1 is a thousandth. The whole decimal read aloud is "three thousand, four hundred, eighty-nine and seven hundred twenty-one thousandths."