1.5 as a Fraction

1.5 as a fraction3/2
Fraction
3/2
Mixed number
1 1/2
Percent
150%

Exact fraction = decimal digits over a power of ten, reduced by the greatest common divisor.

1.5 = 3/2

1.5 as a fraction in simplest form is 3/2, or 1 1/2 as a mixed number.

Step by step

  1. 1.5 has 1 decimal place, so write it over 10: 15/10.
  2. Find the greatest common divisor of 15 and 10: 5.
  3. Divide the top and bottom by 5: 15 ÷ 5 = 3, 10 ÷ 5 = 2.
  4. So 1.5 = 3/2.

Details

Fraction
3/2
Mixed number
1 1/2
Percent
150%
Nearest 1/16 (tape measure)
1 1/2
Reciprocal
2/3 ≈ 0.6667

How it works

To turn a decimal into a fraction, count the digits after the decimal point, write the digits over 10, 100, 1,000 and so on, then simplify by dividing the numerator and denominator by their greatest common divisor. A decimal that ends (terminates) always converts to an exact fraction; a decimal that repeats forever, such as 0.333…, equals a fraction like 1/3.

Nearby values

DecimalFraction
1.26/5
1.255/4
1.37511/8
1.47/5
1.53/2
1.68/5
1.62513/8
1.757/4
1.89/5

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Frequently asked questions

What is 1.5 as a fraction?

1.5 is 3/2 in simplest form.

How do you convert 1.5 to a fraction?

Write 1.5 as 15/10, then divide the top and bottom by 5 to get 3/2.

What is 1.5 as a percentage?

1.5 × 100 = 150%.

What is 1.5 as a mixed number?

1 1/2.

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