Question

Допоможіть будь ласка! Все на фото

Answer 1

$5 \frac{9}{13} + 2 \frac{6}{13} = 7 \frac{9+6}{13} = 7 \frac{15}{13} = 8 \frac{2}{13} \\\\7 \frac{2}{11} - 4 \frac{7}{11} = \frac{79}{11} - \frac{51}{11} = \frac{28}{11} = 2 \frac{6}{11}$

Answer 2

Пошаговое объяснение:

5 9/13 + 2 6/13=(5+2)+(9/13+6/13)=

=7+15/13=7+1 2/13=(7+1)+2/13=8+ 2/13=

=8 2/13

7 2/11-4 7/11=(7-4)+(2/11-7/11)=

=3+(-5/11)= 3-5/11=2 11/11-5/11= 2 6/11