Помогите пожалуйста!! Дам 70 баллов!! Смотреть фото! И решение! То что выделено!. Created by ignatovasveta. matematika-ru

Помогите пожалуйста!! Дам 70 баллов!! Смотреть фото! И решение! То что выделен...

Olga8128

$\frac{7}{48} + \frac{11}{36}=\frac{21}{144} + \frac{44}{144}=\frac{65}{144}. \\\\\frac{26}{45}-\frac{16}{30}=\frac{52}{90} -\frac{48}{90} = \frac{4}{90}=\frac{2}{45}.\\\\\frac{13}{18} -\frac{5}{24}=\frac{52}{72} -\frac{15}{72} = \frac{37}{72}.\\\\1+\frac{3}{8} = 1\frac{3}{8}.\\\\2-\frac{5}{6} = 1\frac{1}{6}.\\\\\frac{5}{13} +\frac{7}{26}=\frac{10}{26}+\frac{7}{26}=\frac{17}{26} .\\\\\frac{11}{63} - \frac{1}{9} =\frac{11}{63} - \frac{7}{63} =\frac{4}{63}.$

$\frac{12}{15}-\frac{3}{5}= \frac{12}{15}-\frac{9}{15}= \frac{3}{15}=\frac{1}{5}.\\\\ 5+\frac{4}{9} = 5\frac{4}{9}.\\\\ 4-\frac{7}{11} = 3\frac{4}{11} .\\\\\frac{7}{12}+\frac{4}{36} =\frac{21}{36}+\frac{4}{36} =\frac{25}{36} .\\\\\frac{15}{27}-\frac{1}{9} =\frac{15}{27}-\frac{3}{27} =\frac{12}{27}=\frac{4}{9}.\\\\\frac{11}{14} -\frac{1}{7} =\frac{11}{14} -\frac{2}{14} =\frac{9}{14}. \\\\4 + \frac{2}{7} = 4\frac{2}{7} .\\\\5-\frac{4}{9} = 4\frac{5}{9} .$

2 votes Thanks 1

natalka123456789

Ответ:

7/48+11/36=21/144+44/144=65/144

26/45-16/30=52/90-48/90=4/90=2/45

13/18-5/24=52/72-15/72=37/72

1+3/8=1 3/8

2-5/6=1 1/6

5/13+7/26=10/26+7/26=17/26

11/63-1/9=11/63-7/63=4/63

12/15-3/5=12/15-9/15=3/15=1/5

5+4/9= 5 4/9

4-7/11=3 4/11

7/12+4/36=21/36+4/36=25/36

15/27-1/9=15/27-3/27=12/27=4/9

11/14-1/7=11/14-2/14=9/14

4+2/7=4 2/7

5-4/9=4 5/9

2 votes Thanks 1

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