Question

Решите пожалуйста умаляю

Answer 1

Ответ:

Пошаговое объяснение:

1.

а) = 1 12/21 + 2 3/21 = 3 15/21 = 3 5/7

б) = 5 11/44 + 3 32/44 =

8 43/44

2.

а) = 3 3/3 - 2/3 = 3 1/3

б) = 5 2/8 - 3 7/8 = 4 10/8 - 3 7/8 = 1 3/8

Answer 2

$1 \frac{4}{7} + 2 \frac{3}{21} = 1 \frac{12}{21} + 2 \frac{3}{21} =3 \frac{15}{21} = 3 \frac{5}{7}$

$5 \frac{1}{4} + 3 \frac{8}{11} = 5 \frac{11}{44} + 3 \frac{32}{44} = 8 \frac{43}{44}$

$4 - \frac{2}{3} = 3 \frac{3}{3} - \frac{2}{3} = 3 \frac{1}{3}$

$5 \frac{1}{4} - 3 \frac{7}{8} = 5 \frac{2}{8} - 3 \frac{7}{8} = 4 \frac{10}{8} - 3 \frac{7}{8} = 1 \frac{3}{8}$