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a) 3|4-1|4*4|3; b)4-2intreg 1|3*3|7

Răspuns :

3/4-1/4x4/3=
3/4-1/3= aducem la acelasi numitor care este 12
=(3x3-1x4)/12=
=(9-4)/12=5/12=0,41(6)

b) 4-2intreg1/3x3/7=
4-[(2x3+1)/3]x3/7=
4-7/3x3/7=4-1=3