Răspuns :
2+ _1_
3
__________ = _( _2·3+ 1)_ : _(_7·3- 2)_
7- _2_ 3 3
3
=__( 6+ 1) ·_3___
3 (21- 2)
= _7_
19
3
__________ = _( _2·3+ 1)_ : _(_7·3- 2)_
7- _2_ 3 3
3
=__( 6+ 1) ·_3___
3 (21- 2)
= _7_
19