Solve 8/79-11/2

$$\frac{ 8 }{ 79 } -1 \frac{ 1 }{ 2 }$$

Evaluate

$$-\frac{221}{158}\approx -1.398734177$$

Solution Steps

Multiply 1 and 2 to get 2.

$$\frac{8}{79}-\frac{2+1}{2}$$

Add 2 and 1 to get 3.

$$\frac{8}{79}-\frac{3}{2}$$

Least common multiple of 79 and 2 is 158. Convert \frac{8}{79} and \frac{3}{2} to fractions with denominator 158.

$$\frac{16}{158}-\frac{237}{158}$$

Since \frac{16}{158} and \frac{237}{158} have the same denominator, subtract them by subtracting their numerators.

$$\frac{16-237}{158}$$

Subtract 237 from 16 to get -221.

$$-\frac{221}{158}$$

Factor

$$-\frac{221}{158} = -1\frac{63}{158} = -1.3987341772151898$$