Solve 397/81-4/8

$$\frac { 397 } { 81 } - \frac { 4 } { 8 }$$

Evaluate

$$\frac{713}{162}\approx 4.401234568$$

Solution Steps

Reduce the fraction \frac{4}{8} to lowest terms by extracting and canceling out 4.

$$\frac{397}{81}-\frac{1}{2}$$

Least common multiple of 81 and 2 is 162. Convert \frac{397}{81} and \frac{1}{2} to fractions with denominator 162.

$$\frac{794}{162}-\frac{81}{162}$$

Since \frac{794}{162} and \frac{81}{162} have the same denominator, subtract them by subtracting their numerators.

$$\frac{794-81}{162}$$

Subtract 81 from 794 to get 713.

$$\frac{713}{162}$$

Factor

$$\frac{23 \cdot 31}{2 \cdot 3 ^ {4}} = 4\frac{65}{162} = 4.401234567901234$$