24. (2 1/4 − 1 3/19) · 19

Question

\(2\frac{1}{4}=\frac{9}{4}\), \(1\frac{3}{19}=\frac{22}{19}\).

\(\left(\frac{9}{4}-\frac{22}{19}\right)\cdot19=\frac{171-88}{76}\cdot19=\frac{83}{76}\cdot19=\frac{83}{4}=20,75\).

Ответ: 20,75.

Accepted Answer

\(2\frac{1}{4}=\frac{9}{4}\), \(1\frac{3}{19}=\frac{22}{19}\).

\(\left(\frac{9}{4}-\frac{22}{19}\right)\cdot19=\frac{171-88}{76}\cdot19=\frac{83}{76}\cdot19=\frac{83}{4}=20,75\).

Ответ: 20,75.