Oblicz 1/4 liczby a wiedząc, że: a = 3,5 *2/5 +7/25 : 0,7 =
a=3,5*2/5+7/25:0,7=35/10*2/5+7/25:7/10=70/50+7/25*10/7=7/5+2/5=9/5
1/4*9/5=9/20
odp.
1/4 liczby a to 9/20
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a=3,5*2/5+7/25:0,7=35/10*2/5+7/25:7/10=70/50+7/25*10/7=7/5+2/5=9/5
1/4*9/5=9/20
odp.
1/4 liczby a to 9/20