Solve 1/2-5/5*8/9

$$\frac { 1 } { 2 } - \frac { 5 } { 5 } \cdot \frac { 8 } { 9 }$$

Evaluate

$$-\frac{7}{18}\approx -0.388888889$$

Solution Steps

Divide 5 by 5 to get 1.

$$\frac{1}{2}-1\times \frac{8}{9}$$

Multiply 1 and \frac{8}{9} to get \frac{8}{9}.

$$\frac{1}{2}-\frac{8}{9}$$

Least common multiple of 2 and 9 is 18. Convert \frac{1}{2} and \frac{8}{9} to fractions with denominator 18.

$$\frac{9}{18}-\frac{16}{18}$$

Since \frac{9}{18} and \frac{16}{18} have the same denominator, subtract them by subtracting their numerators.

$$\frac{9-16}{18}$$

Subtract 16 from 9 to get -7.

$$-\frac{7}{18}$$

Factor

$$-\frac{7}{18} = -0.3888888888888889$$