Solve 15/2-39/10

$$\frac{ 15 }{ 2 } - \frac{ 39 }{ 10 }$$

Evaluate

$$\frac{18}{5}=3.6$$

Solution Steps

Least common multiple of 2 and 10 is 10. Convert \frac{15}{2} and \frac{39}{10} to fractions with denominator 10.

$$\frac{75}{10}-\frac{39}{10}$$

Since \frac{75}{10} and \frac{39}{10} have the same denominator, subtract them by subtracting their numerators.

$$\frac{75-39}{10}$$

Subtract 39 from 75 to get 36.

$$\frac{36}{10}$$

Reduce the fraction \frac{36}{10} to lowest terms by extracting and canceling out 2.

$$\frac{18}{5}$$

Factor

$$\frac{2 \cdot 3 ^ {2}}{5} = 3\frac{3}{5} = 3.6$$