How to convert 1.8 to a fraction?

1.8 = 18/10 Then simplify to 9/5.

1.8 terminating or repeating?

It is a terminating decimal. The simplest fraction is 9/5.

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1.8 =

1.8

(1 decimal place → denominator 10)

18/10

→ simplify ÷2

(divide numerator and denominator by 2)

Step 1: 1.8 has 1 decimal place, so write it as 18/10.

Step 2: Divide numerator and denominator by 2: 18/10 → 9/5.

Property: In simplest terms, denominators with prime factors only 2 and/or 5 produce terminating decimals.

Why can 1.8 be converted to a fraction?: Decimals can be expressed as fractions by using place value and simplifying.
1.8 terminating or repeating?: It is terminating.
Can it be simplified further?: 9/5 is simplest.

Percentage & Ratio: 1.8 can be interpreted as 9/5 in practical scenarios like discounts and rates.

Statistics: A proportion of 1.8 often represents a 180% probability — for example, a 180% significance level (p-value) in experiments or surveys.

Finance: Rates expressed with 1.8 (e.g., 180%) appear in returns and fees.