Whole Part and Fractional Part
This mixed decimal combines the whole part 1 with the fractional part 397/1000. In place-value words, "and" marks that boundary.
Decimal in the thousandths place
1.397 in Words
1.397 is a positive terminating decimal greater than 1. It has 3 decimal places, and its final digit is in the thousandths place.
Direct Answer
1.397 in words is one point three nine seven.
1.397 Place-Value Breakdown
The digits 1 form the whole-number part, while 3 in the tenth place, 9 in the hundredth place, and 7 in the thousandth place.
| Part | Digit | Place | Digit value |
|---|---|---|---|
| Whole part | 1 | ones | 1 |
| Decimal part | 3 | tenth | 3/10 |
| Decimal part | 9 | hundredth | 9/100 |
| Decimal part | 7 | thousandth | 7/1000 |
What Kind of Decimal Is 1.397?
1.397 is a positive terminating decimal greater than 1. It is written to the thousandths place.
Expanded Form of 1.397
1.397 = 1 + 3/10 + 9/100 + 7/1000
1.397 = 1 + 397/1000
1.397 = 1 397/1000
The final nonzero digit is in the thousandths place, so its value is expressed with a denominator of 1000.
Why 1397/1000 Is Already in Lowest Terms
There are 3 decimal places, so the exact fraction is 1397/1000.
The greatest common divisor of its numerator and denominator is 1, so the fraction cannot be reduced further.
As a mixed fraction, the value is 1 397/1000.
1.397 as a Percentage
To convert 1.397 to a percentage, multiply it by 100.
1.397 × 100 = 139.7
Therefore, 1.397 = 139.7%.
Decimals Equivalent to 1.397
1.397 = 1.3970 = 1.39700
Adding zeros to the right of a decimal does not change its numerical value. It does change the number of written decimal places and may communicate different precision.
| Decimal | Final place | Exact fraction | Simplified value |
|---|---|---|---|
| 1.397 | thousandths | 1397/1000 | 1397/1000 |
| 1.3970 | ten-thousandths | 13970/10000 | 1397/1000 |
| 1.39700 | hundred-thousandths | 139700/100000 | 1397/1000 |
1.397 on a Number Line
1.397 lies between 1 and 2. It is 0.603 below 2 and 0.397 above 1.
11.3972
1.397 Compared with Similar Decimals
| Decimal | Spoken form | Place-value form | Fraction | Percentage | Relationship |
|---|---|---|---|---|---|
| 0.1397 | zero point one three nine seven | one thousand three hundred ninety-seven ten-thousandths | 1397/10000 | 13.97% | ten times smaller than 1.397 |
| 1.397 | one point three nine seven | one and three hundred ninety-seven thousandths | 1397/1000 | 139.7% | current value |
| 1.3970 | one point three nine seven zero | one and three thousand nine hundred seventy ten-thousandths | 1397/1000 | 139.7% | same numerical value, written to the ten-thousandths place |
| 13.97 | thirteen point nine seven | thirteen and ninety-seven hundredths | 1397/100 | 1397% | ten times larger than 1.397 |
Quick Practice
How is 1.397 read digit by digit?
One point three nine seven.
What is the place-value word form of 1.397?
One and three hundred ninety-seven thousandths.
What fraction is 1.397 in lowest terms?
1397/1000.
What percentage is equal to 1.397?
139.7%.
What is 1.397 as a mixed fraction?
1 397/1000.
Between which whole numbers does 1.397 lie?
Between 1 and 2.
Frequently Asked Questions
How do you write 1.397 in words?
1.397 in words is one point three nine seven.
Why is 1.397 called one and three hundred ninety-seven thousandths?
Because the digit 3 is in the thousandths place. Therefore, 1.397 represents one and three hundred ninety-seven thousandths.
What fraction is 1.397?
1.397 is 1397/1000 exactly and 1397/1000 in lowest terms.
Is 1397/1000 already in lowest terms?
Yes. Its numerator and denominator have a greatest common divisor of 1.
What percentage is 1.397?
1.397 is equal to 139.7%.
Is 1.397 the same as 1.3970?
Yes. 1.397 and 1.3970 have the same numerical value. However, 1.397 is written to the thousandths place, while 1.3970 is written to the ten-thousandths place and may communicate greater recorded precision.
Is 1.397 larger than 0.1397?
Yes. 1.397 is ten times as large as 0.1397.
What type of decimal is 1.397?
1.397 is a positive terminating decimal greater than 1. It is written to 3 decimal places and represents one and three hundred ninety-seven thousandths.