Solve 2.7+-41/2=

$$2.7 + - 4 \frac { 1 } { 2 } =$$

Evaluate

$$-1.8$$

Solution Steps

Multiply 4 and 2 to get 8.

$$2.7-\frac{8+1}{2}$$

Add 8 and 1 to get 9.

$$2.7-\frac{9}{2}$$

Convert decimal number 2.7 to fraction \frac{27}{10}.

$$\frac{27}{10}-\frac{9}{2}$$

Least common multiple of 10 and 2 is 10. Convert \frac{27}{10} and \frac{9}{2} to fractions with denominator 10.

$$\frac{27}{10}-\frac{45}{10}$$

Since \frac{27}{10} and \frac{45}{10} have the same denominator, subtract them by subtracting their numerators.

$$\frac{27-45}{10}$$

Subtract 45 from 27 to get -18.

$$\frac{-18}{10}$$

Reduce the fraction \frac{-18}{10} to lowest terms by extracting and canceling out 2.

$$-\frac{9}{5}$$

Factor

$$-1.8$$