Задача 76010 Решыте ето...

65dcb26558f8d021aead8901

2/26/2024 3:49:55 PM

Решыте ето

626fab9a354ab65fb2f43abb

2/26/2024 6:01:21 PM

★

1) [m]17 \frac{4}{19} - (5 \frac{10}{19} + 1 \frac{11}{19}) = 17 \frac{4}{19} - 6 \frac{10+11}{19} = 17 \frac{4}{19} - 6 \frac{21}{19} =[/m]
[m] = 17 \frac{4}{19} - 6 \frac{19+2}{19} = 17 \frac{4}{19} - 7 \frac{2}{19} = 10 \frac{4-2}{19} = 10 \frac{2}{19}[/m]

2) [m](x + 2 \frac{5}{11}) - 4 \frac{6}{11} = 1 \frac{4}{11}[/m]
[m]x + 2 \frac{5}{11} - 4 \frac{6}{11} = 1 \frac{4}{11}[/m]
[m]x = 1 \frac{4}{11} + 4 \frac{6}{11} - 2 \frac{5}{11}[/m]
[m]x = 3 \frac{4+6-5}{11}[/m]
[m]x = 3 \frac{5}{11}[/m]

3) [m]7 - \frac{4}{11} = 6 \frac{11}{11} - \frac{4}{11} = 6 \frac{11-4}{11} = 6 \frac{7}{11}[/m]

4) [m]5 \frac{6}{9} - 2 \frac{8}{9} = 4 \frac{9}{9} + \frac{6}{9} - 2 \frac{8}{9} = 2 \frac{9+6-8}{9} = 2 \frac{7}{9}[/m]

5) [m]5 \frac{11}{12} + 7 \frac{10}{12} = 12 \frac{11+10}{12} = 12 \frac{21}{12} = 12 \frac{12+9}{12} = 13 \frac{9}{12}[/m]