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A '''decimal''' is a way to express [[fraction]]s. A whole number is placed to the left of the decimal point (also called period or full stop). Digits to the right of the decimal indicate a fraction of a whole, as in tenths, hundredths, thousandths and so on.
A '''decimal''' is a way to express [[fraction]]s. A whole number is placed to the left of the decimal point (also called period or full stop). Digits to the right of the decimal indicate a fraction of a whole, as in tenths, hundredths, thousandths and so on.
The most frequent use of decimals is with money. $1.23 means 1 dollar and 23 cents, where each [[cent]] is 1/100 of a dollar. Half a dollar is $0.50, meaning 50/100 of a dollar. An American "[[quarter dollar|quarter]]" is .25 of a dollar, equal to to 25/100 of a dollar or 25 cents.
The most frequent use of decimals is with money. $1.23 means 1 dollar and 23 cents, where each [[cent]] is 1/100 of a dollar. Half a dollar is $0.50, meaning 50/100 of a dollar. An American "[[quarter dollar|quarter]]" is .25 of a dollar, equal to 25/100 of a dollar or 25 cents.
When writing decimals less than 1, a 0 does not have to be placed on the left side of the decimal point.
When writing decimals less than 1, a 0 does not have to be placed on the left side of the decimal point.