Question

7,2/2+2/5 найти значения выражения

Answer 1

7,2/2+2/5

3,6+2/5

18/5+2/5=20/5=4

Ответ:4

Answer 2

$\frac{7.2}{2} + \frac{2}{5} =$

$\frac{7 \frac{2}{10} }{2} + \frac{2}{5} =$

$\frac{7 \frac{1}{5} }{2} + \frac{2}{5} =$

$\frac{ \frac{36}{5} }{2} + \frac{2}{5} =$

$\frac{36}{5 \times 2} + \frac{2}{5} =$

$3 \frac{6}{10} + \frac{4}{10} = 4$