Question

1 minus 4 pe 27 plus 15 pe 18​

Answer 1

$\frac{1 - 4}{27} + \frac{15}{18} = \\ \frac{ - 3}{27 } {}^{ \div 3} + \frac{15}{18} = \\ \frac{ - 1}{9} {}^{ \times 2} + \frac{15}{18} = \\ \frac{ - 2}{18} + \frac{15}{18} = \\ \frac{ - 2 + 15}{18} = \\ \frac{13}{18}$