38) \(\frac{112}{4}-\frac{10}{100}\)

\(\frac{112}{4}=28\), а \(\frac{10}{100}=\frac{1}{10}\).

\(28-\frac{1}{10}=\frac{280}{10}-\frac{1}{10}=\frac{279}{10}=27\frac{9}{10}\).

Ответ: \(\frac{279}{10}\)