1.8 as a Fraction

9/5

How to convert 1.8 to a fraction

1.8 as a fraction in simplest form is 9/5.

  1. Count the decimal places

    1.8 has 1 decimal place. The denominator is 10^1 = 10.

  2. Remove the decimal point

    Move the digits after the decimal into the numerator: 18/10.

  3. Find the greatest common divisor (GCD)

    GCD(18, 10) = 2.

  4. Divide by the GCD to simplify

    18 ÷ 2 = 9 and 10 ÷ 2 = 5, so the simplified fraction is 9/5.

  5. Express as a mixed number

    9 ÷ 5 = 1 with remainder 4, written as 1 4/5.