Question

найдите значение выражения 5-3/10+2целых 7/10

Answer 1

$5- \frac{3}{10} +2 \frac{7}{10} =5+2 \frac{4}{10} =7 \frac{4}{10} =7,4$

Answer 2

$5-\frac{3}{10}+2\frac{7}{10}=4\frac{10}{10}-\frac{3}{10}+2\frac{7}{10}=6\frac{14}{10}=7\frac{4}{10}=7\frac{2}{5}=7,4$