Question

помогите пожалуйста вычислить

Answer 1

А
$frac{1}{3}$ +$frac{2}{3}$ = $frac{3}{3}$=1
3/7 +2/7 = 5/7
7/9 - 2/9 = 5/9
9/10 - 2/10 = 7/10
7/17 + 9/17 = 16/17
Б
8/17 + 5/17 = 13/17
8/10 - 5/10 = 3/10
17/23 - 8/23 = 9/23
5/6 + 1/6 = 6/6 = 1
9/11 - 7/11 = 2/11
В
1 - 2/7 = 1/1 - 2/7 = 7/7 - 2/7 = 5/7
4$frac{2}{5}$ + 2$frac{1}{5}$ = 6$frac{3}{5}$
3$frac{8}{11}$ - 1$frac{6}{11}$ = 2$frac{2}{11}$
5/7 + 2 = 2$frac{5}{7}$
2$frac{3}{8}$ + 5/8 = 2$frac{7}{8}$
Г 
4$frac{5}{13}$ - 2$frac{2}{13}$ = 2$frac{3}{13}$
4/7 + 3/7 = 7/7 = 1
7/9 + 2$frac{2}{9}$
1 - 2/5 = 1/1 - 2/5 = 5/5 - 2/5 = 3/5
3$frac{2}{7}$ + 5$frac{4}{7}$ = 8$frac{6}{7}$
Д
1$1frac{6}{11}$ - 7/11 = 17/11 - 7/11 = 10/11
9/15 + 7/15 = 16/15 = 1$frac{1}{15}$
5/7 + 3$frac{6}{7}$ = 5/7 + 27/7 = 32/7 = 3$frac{5}{7}$
9 - 3$frac{7}{8}$ = 9/1 - 31/8 = 72/8 - 31/8 = 41/8 = 5$frac{1}{8}$
6$frac{6}{13}$ - 5$frac{11}{13}$ = 8/13
Е 
6 - 4$frac{9}{10}$ = 60/10 - 49/10 = 11/10 = 1$frac{1}{10}$
3/5 + 2$frac{4}{5}$ = 3$frac{2}{5}$
1$frac{8}{13}$ - 9/13 = 12/13
10/16 + 9/16 = 19/16 = 1$frac{3}{16}$
7$frac{3}{11}$ - 6$frac{5}{11}$ = 9/11