помогите пжжжжжжжжжжж​

1) 12 - 5 3/4 = 12 - 23/4 = 25/4 = 6 1/4 м
2) 8 1/8 - 2 1/4 = 65/8 - 9/4 = 65/8 - 18/8 = 47/8 = 5 7/8 дм
3) 5 3/4 - 4 1/8 = 23/4 - 33/8 = 46/8 - 33/8 = 13/8 = 1 5/8 см
4) 6 - 2/7 = 5 7/7 - 2/7 = 5 5/7 ч
5) 3 1/2 - 2 3/4 = 7/2 - 11/4 = 14/4 - 11/4 = 3/4 ч
6) 9 - 5 1/4 = 8 4/4 - 5 1/4 = 3 3/4 ч

Желаю успехов в учёбе ❤️