The mixed number 20 18/40 as a decimal is equal to 20.45
To convert the mixed number 20 18/40 into a decimal number, you can follow these steps:
First, convert the fractional part 18/40 to decimal form by dividing the numerator by the denominator: 18 ÷ 40 = 0.45
Then, add the resulting decimal to the integer part of the mixed number: 20 + 0.45
Alternatively, you can convert mixed numbers to improper fractions first and then convert the improper fraction to a decimal. The calculation formula is as follows:
Therefore, the mixed number 20 18/40 as a decimal is 20.45.
See also: 20 18/40 as an improper fraction