Question

Simplify : 8 / 15 - 12 / 45 + 15 / 30 - 9 / 15​

Answer 1

$\frac{8}{15} - \frac{12}{45} + \frac{15}{30} - \frac{9}{15} \\ \\ = \frac{8}{15} - \frac{4}{15} + \frac{1}{2} - \frac{3}{5} \\ \\ = \frac{8}{15} + \frac{1}{2} - \frac{4}{15} - \frac{3}{5} \\ \\ = \frac{31}{30} - \frac{13}{15} \\ \\ = \frac{31 - 26}{30} \\ \\ = \frac{5}{30} = \frac{1}{6}$