Solve 7/9-3/5

$$\frac{ 7 }{ 9 } - \frac{ 3 }{ 5 }$$

Evaluate

$$\frac{8}{45}\approx 0.177777778$$

Solution Steps

Least common multiple of 9 and 5 is 45. Convert \frac{7}{9} and \frac{3}{5} to fractions with denominator 45.

$$\frac{35}{45}-\frac{27}{45}$$

Since \frac{35}{45} and \frac{27}{45} have the same denominator, subtract them by subtracting their numerators.

$$\frac{35-27}{45}$$

Subtract 27 from 35 to get 8.

$$\frac{8}{45}$$

Factor

$$\frac{2 ^ {3}}{3 ^ {2} \cdot 5} = 0.17777777777777778$$