Explanation

Convert the decimal to a fraction: The decimal 1.269 equals 1 + 0.269.

Express the decimal part as a fraction: 0.269 can be written as 269/1000.

Combine the whole number and fractional part: Therefore, 1.269 is equal to 1 + 269/1000.

Express as a mixed number: This equals 1 269/1000.