Ответ:

1) x + 4 3/8 = 6 1/6.

x = 6 1/6 − 4 3/8 = 6 4/24 − 4 9/24 = 1 19/24.

2) 8 − x = 4 1/7.

x = 8 − 4 1/7 = 3 6/7.

Ответ: x = 1 19/24; x = 3 6/7.