Question

математика 5 класс срочно !!!!!! ​

Answer 1

Ответ:

Пошаговое объяснение:

11/18 + 5/12 = 22/36 + 15/36 = 37/36 = 1 1/36

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2 1/8 + 3 3/16 = 2 2/16 + 3 3/16 = 5 5/16

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3/4 + 5/7 = 21/28 + 20/28 = 41/28 = 1 13/28

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4 7/25 + 2 4/10 = 4 14/50 + 2 20/50 = 6 34/50 = 6 17/25

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5/12 + 5 2/21 = 35/84 + 5 8/84 = 5 43/84

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Answer 2

Ответ:

$\displaystyle \frac{11}{18}+\frac{5}{12} = \frac{22+15}{36} = \frac{37}{36} = 1\frac{1}{36}.$

$\displaystyle 2\frac{1}{8} + 3\frac{3}{16} = \frac{17}{8} + \frac{51}{16} = \frac{34}{16} + \frac{51}{16} = \frac{85}{16} = 5 \frac{5}{16}.$

$\displaystyle \frac{3}{4}+\frac{5}{7} = \frac{21}{28} + \frac{20}{28} = \frac{41}{28} = 1\frac{11}{28}.$

$\displaystyle 4\frac{7}{25}+2\frac{4}{10} = 4\frac{7}{25}+2\frac{2}{5} = \frac{107}{25}+\frac{12}{5} = \frac{107}{25}+ \frac{60}{25} = \frac{167}{25} = 6\frac{17}{25} .$

$\displaystyle \frac{5}{12} + 5\frac{2}{21} = \frac{5}{12} + \frac{107}{21} = \frac{35}{84}+\frac{428}{84} = \frac{463}{84} = 5 \frac{43}{84}.$