Convert the decimal number to a fraction by placing the decimal number over a power of ten. Since there is number to the right of the decimal point, place the decimal number over . Next, add the whole number to the left of the decimal.

Reduce the fractional part of the mixed number.

A mixed number is an addition of its whole and fractional parts.

Add and .

Write as a fraction with a common denominator.

Combine the numerators over the common denominator.

Add and .

Convert to a Simplified Fraction -1.8