Question

13
50
+
12
50
+
12
50
56
15
0
+
100
100
100​

Answer 1

Ответ:

$1)\frac{13}{50} +\frac{12}{50}+ \frac{2}{50}=\frac{25}{50} +\frac{2}{50}=\frac{27}{50} \\\\ 2)\frac{56}{100}+ \frac{15}{100}- \frac{9}{100}=\frac{56}{100}+ \frac{6}{100}=\frac{62}{100}=\frac{31}{50} \\\\3)\frac{19}{25}+ \frac{6}{25}+ \frac{3}{25}=\frac{19}{25}+ \frac{9}{25}=\frac{28}{25}=1\frac{3}{25} \\\\4)(\frac{20}{45}+ \frac{18}{45})-\frac{29}{45}=\frac{38}{45}-\frac{29}{45}=\frac{9}{45} =\frac{1}{5}$

Пошаговое объяснение: