Автор - sO95

Помогите пожалуйста❤️

Ответ

Автор - Murad313

Ответ:

a)4frac{5}{6} +2frac{3}{8}=frac{29}{6}+frac{19}{8}=frac{116+57}{24}=frac{173}{24}

b)7frac{5}{18} -1frac{7}{12}=frac{131}{18}-frac{19}{12} =frac{262-57}{36} =frac{205}{36}

c)3frac{4}{9}+2frac{2}{7}=frac{31}{9} +frac{16}{7}= frac{217+144}{63}=frac{361}{63}

d)5frac{3}{14}-1frac{1}{21}=frac{73}{14} - frac{22}{21} =frac{219-44}{42} =frac{175}{42}

Ответ

Проверено экспертом

Автор - LFP

Пошаговое объяснение:

4_5/6 + 2_3/8 = 4 + (5/6) + 2 + (3/8) = 6 + (20/24) + (9/24) = 6 + (29/24) = 7 целых 5/24

7_5/18 - 1_7/12 = 7 + (5/18) - 1 - (7/12) = 6 + (10/36) - (21/36) = 6 - (11/36) = 5 + (36/36) - (11/36) = 5 целых 25/36

3_4/9+2_2/7 = 3 + (4/9) + 2 + (2/7) = 5 + (28/63) + (18/63) = 5 + (46/63) = 5 целых 46/63

5_3/14 - 1_1/21 = 5 + (3/14) - 1 - (1/21) = 4 + (9/42) - (2/42) = 4 + (7/42) = 4 + (1/6) = 4 целых 1/6

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