Question

calculati: a)1supra2din2500lei; b)3supra5din240kg; c)2supra7din700m; d)2supra3din420m; e)5supra6din210; f) 3supra8din400.

Answer 1

Răspuns

a) (1/2)x2500 = 2500/2 = 1250 lei ;

b) (3/5)x240 = (240x3)/5 = 720/5 = 144 kg ;

c) (2/7)x700 = (700x2)/7 = 1400/7 = 200 m ;

d) (2/3)x240 = (240x2)/3 = 480/3 = 160 m ;

e) (5/6)x210 = (210x5)/6 = 1050/6 = 175 ;

f) (3/8)x400 = (400x3)/8 = 1200/8 = 150 ;

Answer 2

Răspuns

1\2.2500=1250 ; 3\5 .240=144 ; c)2\7 .700=2 .100=200 ; d)2\3 .420=280 ;      e)5\6 .210=175 ;f  3\8 .400=150

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