Question

2/9+3/5
4/9+1/6
1/18+5/12
3/10+2/15
6/7-2/3
11/12-5/6
7/12-3/8
9/14-17/35

Answer 1

Ответ:

Пошаговое объяснение:

$\frac{2}{9} +\frac{3}{5} =\frac{10}{45} +\frac{27}{45} =\frac{37}{45} \\ \\ \frac{4}{9} +\frac{1}{6} =\frac{8}{18}+\frac{3}{18}=\frac{11}{18}\\ \\ \frac{1}{18} +\frac{5}{12} =\frac{2}{36} +\frac{15}{36} =\frac{17}{36} \\ \\ \frac{3}{10} +\frac{2}{15} =\frac{9}{30}+\frac{4}{30} =\frac{13}{30} \\ \\ \frac{6}{7}-\frac{2}{3} =\frac{18}{21} -\frac{14}{21} =\frac{4}{21} \\ \\ \frac{11}{12}-\frac{5}{6} =\frac{11}{12} -\frac{10}{12}=\frac{1}{12}$

$\frac{7}{12} -\frac{3}{8}=\frac{14}{24}-\frac{9}{24} =\frac{5}{24} \\ \\ \frac{9}{14}-\frac{17}{35}=\frac{45}{70}-\frac{34}{70}=\frac{11}{70}$

Answer 2

Ответ:

1) =37/45=0,82

2) =11/18=0,61

3) =17/36=0,472

4) =13/30=0,43

5) =4/21=0,190476

6) =1/12=0,083

7) =5/24=0,2083

8) =11/70=0,1571428

Пошаговое объяснение:

100% правильно