Odpowiedzi

2009-09-16T18:54:38+02:00
8 3/7-(5 8/21+3 3/14)= 8 3/7-(5 16/42 + 3 9/42)=8 3/7-(8 25/42)=
=8 21/42 - 8 25/42=-4/42=-2/21
prosze odp.
2009-09-16T18:54:57+02:00
8 3/7-(5 8/21+3 3/14) = 8³/₇ - 8⁵/₇ = -2/7