Question

8/9+1/3
4/5+7/15
2/21+5/14
7/9+1/6
2/21+3/14
Пж решите это если что дроби пж помогите
Дам 15 балов

Answer 1

Ответ:

Пошаговое объяснение:

8/9+1/3 = 8/9 + 3/9 = 11/9 = 1цел.2/9

4/5+7/15 = 12/15 + 7/15 = 19/15 = 1цел.4/15

2/21+5/14 = 4/42 + 15/42 = 19/42

7/9+1/6 = 14/18 + 3/18 = 17/18

2/21+3/14 = 4/42 + 9/42 = 13/42

Answer 2

$1) \frac{8}{9} + \frac{1}{3} = \frac{8 + 3}{9} = \frac{11}{9} = 1 \frac{2}{9} \\ 2) \frac{4}{5} + \frac{7}{15} = \frac{12 + 7}{15} = \frac{19}{15} = 1 \frac{4}{15} \\ 3) \frac{2}{21} + \frac{5}{14} = \frac{4 + 15}{42} = \frac{19}{42} \\ 4) \frac{7}{9} + \frac{1}{6} = \frac{14 + 3}{18} = \frac{17}{18} \\ 5) \frac{2}{21} + \frac{3}{14} = \frac{4 + 9}{42} = \frac{13}{42}$