Question

7 5/7 + 6/7 =
1 - 9/13 =
9 7/13 - 6 9/13 =

Answer 1

75+6/7 = 81\7
13/13 - 9/13 = 4/13
97-69/13 = 28/13

Answer 2

$7 \frac{5}{7} + \frac{6}{7} = 8 \frac{4}{7}$

$1 - \frac{9}{13} = \frac{4}{13}$

$9 \frac{7}{13} - 6 \frac{9}{13} = 2 \frac{11}{13}$