Автор - XzwkaTya

Помогите пожалуйста с 10-11 упражнением!​

Ответ

Автор - all09000

я могу токо 11

1) 11 цел вверху 20 внизу 39

2)44 цел вверх 18 вниз 56

3)8цел 18 вверх 48 вниз

4)87 цел вверх 4 вниз 32

Ответ

Автор - drakerton

Ответ:

10.1) 48,93 + 41,83 = 90,76

48,93 - 41,83 = 7,10

10.2) 100,99 + 99,01 = 200

100,99 - 99,01 = 1,98

10.3) 568,19 + 2,81 = 571

568,19 - 2,81 = 565,38

10.4) 40,007 + 39,07 = 79,077

40,007 - 39,07 = 0,937

11.1) 7frac{11}{12} + 4frac{9}{16} = 11 frac{11}{12} + frac{9}{16} = 11 frac{33+36}{48} = 11frac{69}{48} = 12frac{21}{48} = 12frac{7}{16}\\7frac{11}{12} - 4frac{9}{16} = 3 frac{11}{12} - frac{9}{16} = 3 frac{33-36}{48} = 3frac{-3}{48} = 3frac{-1}{16} = 2frac{15}{16}

11.2) 5frac{7}{30} + 3frac{11}{18} = 8 frac{7}{30} + frac{11}{18} = 8 frac{21+55}{90} = 8frac{76}{90} = 8frac{38}{45}\\5frac{7}{30} - 3frac{11}{18} = 2 frac{7}{30} - frac{11}{18} = 2 frac{21-55}{90} = 2frac{-34}{90} = 1frac{56}{90} = 1frac{28}{45}

11.3) 25frac{13}{42} + 19frac{9}{14} = 44frac{13}{42} + frac{9}{14} = 44frac{13+27}{42} = 44frac{40}{42} = 44frac{20}{21}\\25frac{13}{42} - 19frac{9}{14} = 6frac{13}{42} - frac{9}{14} = 6frac{13-27}{42} = 6frac{-14}{42} = 6frac{-1}{3} = 5frac{2}{3}

11.4) 49frac{3}{20} + 38frac{1}{12} = 87frac{3}{20} + frac{1}{12} = 87frac{9+5}{60} = 87frac{14}{60} = 87frac{7}{30}\\49frac{3}{20} - 38frac{1}{12} = 11frac{3}{20} - frac{1}{12} = 11frac{9-5}{60} = 11frac{4}{60} = 11frac{1}{15}

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