Răspuns:
a)=19\/2
____
5
4\/-4\/2+5\/2-2•(3\/2÷5)
5\/2•3\/2
___
5
5\/2-6\/2
___
5
b)=1-5\/3
1-3\/3+4\/3+6\/3+3(\/3-5\/32)
1-3\/3+4\/3+6\/3+3•(-4\/3)
1-3\/3+4\/3+6\/3-12\/3
c)=11\/5
2(5\/5-\/5)-3\/5+6\/5
2•4\/5-3\/5+6\/5
8\/5-3\/5+6\/5
d)=2-305\/3
2-(30\/3+17•3²\/3)-42\/3-80-\/3
2-(30\/3+17•9\/3)-42\/3-80-\/3
2-(30\/3+153\/3)-42\/3-80-\/3
2-183\/3-42\/-80-\/3
e)3\/10-12\/3(-\/30+4\/3+\/2)
2(13\/10-48-4\/6)
26\/10-96-8\/6
2(13\/10-48-4\/6)
26\/10-96-8\/6
sper ca măcar cele înainte de ultimul is bune noroc:)♡