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Ionturcan2000
a fost răspuns

calculati:a)2/15-3/10 b)-3/7-20/21 c)-3intregsi1/12-(-1/6) e)-2intreg si 3/4-9-3intregsi2/5 f)2intreg si 5/8-3intreg si5/6 si operatiile va rog frumossss dau coroana!

Răspuns :

a)2/15-3/10=4/30-9/30=-5/30=-1/6
b)-3/7-20/21=-9/21-20/21=-30/21=-10/7
c)-3intregi 1/12-(-1/2)=-47/12-(-6/12)=-41/12
-2 intregi 3/4-9-3intregi 2/5=-4/4-9-13/5=-20/20-36/4-

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