Question

решите пж 1/7-2,5;1 1/2-0,5:

Answer 1

1/7 - 2,5 = 1/7 - 25/10 = 1/7 - 5/2 = 2/14 - 35/14 = - 33/14 = - 2целых 5/14
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1 1/2 - 0,5 = 3/2 - 5/10 = 3/2 - 1/5 = 15/10 - 2/10 = 13/10 = 1целая 3/10

Answer 2

класс

Answer 3

пасиб ббольшое

Answer 4

Ок!