(-7 1/4+5 2/3)-(-3,6-5,4)
(- 7 1/4 + 5 2/3) - (- 3,6 - 5,4) = - 7 1/4 + 5 2/3 + 3,6 + 5,4 = 7 5/12
1) 5 2/3 - 7 1/4 = (5 - 7) + (2/3 - 1/4) = - 2 + (8/12 - 3/12) = - 2 + 5/12 = - 1 7/12
2) 3,6 + 5,4 = 9
3) 9 - 1 7/12 = 8 12/12 - 1 7/12 = 7 5/12
Решите задачу: