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d si e urgenţă!!!! dau coronita

D Si E Urgenţă Dau Coronita class=

Răspuns :

1)3/7+19/14=6+19/14=25/14
2) 7/3-7/2+11/6=14-21+11/6=25-21/6=4/6=2/3;

d)   = 3/7 +19/14 = (6+19) : 14= 25/14 = 1.11/14