Whole Part and Fractional Part
This mixed decimal combines the whole part 1 with the fractional part 388/1000. In place-value words, "and" marks that boundary.
Decimal in the thousandths place
1.388 in Words
1.388 is a positive terminating decimal greater than 1. It has 3 decimal places, and its final digit is in the thousandths place.
Direct Answer
1.388 in words is one point three eight eight.
1.388 Place-Value Breakdown
The digits 1 form the whole-number part, while 3 in the tenth place, 8 in the hundredth place, and 8 in the thousandth place.
| Part | Digit | Place | Digit value |
|---|---|---|---|
| Whole part | 1 | ones | 1 |
| Decimal part | 3 | tenth | 3/10 |
| Decimal part | 8 | hundredth | 8/100 |
| Decimal part | 8 | thousandth | 8/1000 |
What Kind of Decimal Is 1.388?
1.388 is a positive terminating decimal greater than 1. It is written to the thousandths place.
Expanded Form of 1.388
1.388 = 1 + 3/10 + 8/100 + 8/1000
1.388 = 1 + 388/1000
1.388 = 1 97/250
The final nonzero digit is in the thousandths place, so its value is expressed with a denominator of 1000.
How 1.388 Simplifies to 347/250
1.388 = 1388/1000
The greatest common divisor of 1388 and 1000 is 4.
1388 ÷ 4 = 347
1000 ÷ 4 = 250
Therefore, 1388/1000 = 347/250.
As a mixed fraction, the value is 1 97/250.
1.388 as a Percentage
To convert 1.388 to a percentage, multiply it by 100.
1.388 × 100 = 138.8
Therefore, 1.388 = 138.8%.
Decimals Equivalent to 1.388
1.388 = 1.3880 = 1.38800
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 |
|---|---|---|---|
| 1.388 | thousandths | 1388/1000 | 347/250 |
| 1.3880 | ten-thousandths | 13880/10000 | 347/250 |
| 1.38800 | hundred-thousandths | 138800/100000 | 347/250 |
1.388 on a Number Line
1.388 lies between 1 and 2. It is 0.612 below 2 and 0.388 above 1.
11.3882
1.388 Compared with Similar Decimals
| Decimal | Spoken form | Place-value form | Fraction | Percentage | Relationship |
|---|---|---|---|---|---|
| 0.1388 | zero point one three eight eight | one thousand three hundred eighty-eight ten-thousandths | 347/2500 | 13.88% | ten times smaller than 1.388 |
| 1.388 | one point three eight eight | one and three hundred eighty-eight thousandths | 347/250 | 138.8% | current value |
| 1.3880 | one point three eight eight zero | one and three thousand eight hundred eighty ten-thousandths | 347/250 | 138.8% | same numerical value, written to the ten-thousandths place |
| 13.88 | thirteen point eight eight | thirteen and eighty-eight hundredths | 347/25 | 1388% | ten times larger than 1.388 |
Quick Practice
How is 1.388 read digit by digit?
One point three eight eight.
What is the place-value word form of 1.388?
One and three hundred eighty-eight thousandths.
What fraction is 1.388 in lowest terms?
347/250.
What percentage is equal to 1.388?
138.8%.
What is 1.388 as a mixed fraction?
1 97/250.
Between which whole numbers does 1.388 lie?
Between 1 and 2.
Frequently Asked Questions
How do you write 1.388 in words?
1.388 in words is one point three eight eight.
Why is 1.388 called one and three hundred eighty-eight thousandths?
Because the digit 3 is in the thousandths place. Therefore, 1.388 represents one and three hundred eighty-eight thousandths.
What fraction is 1.388?
1.388 is 1388/1000 exactly and 347/250 in lowest terms.
Can 1388/1000 be simplified?
Yes. Divide its numerator and denominator by 4 to get 347/250.
What percentage is 1.388?
1.388 is equal to 138.8%.
Is 1.388 the same as 1.3880?
Yes. 1.388 and 1.3880 have the same numerical value. However, 1.388 is written to the thousandths place, while 1.3880 is written to the ten-thousandths place and may communicate greater recorded precision.
Is 1.388 larger than 0.1388?
Yes. 1.388 is ten times as large as 0.1388.
What type of decimal is 1.388?
1.388 is a positive terminating decimal greater than 1. It is written to 3 decimal places and represents one and three hundred eighty-eight thousandths.