4/7 x (0,2 + 1/4).
Proszę kto 1 = naj
4/7*(0,2 + 1/4) = 4/7 *( 1/5 + 1/4) = 4/7 * (4/20 + 5/20) = 4/7 * 9/20 = 36/140 = 18/70 = 9/35
4/7*(0,2+1/4)=4/7*(2/10+1/4)=4/7*(4/20+5/20)=4/7*9/20=36/140=9/35
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4/7*(0,2 + 1/4) = 4/7 *( 1/5 + 1/4) = 4/7 * (4/20 + 5/20) = 4/7 * 9/20 = 36/140 = 18/70 = 9/35
4/7*(0,2+1/4)=4/7*(2/10+1/4)=4/7*(4/20+5/20)=4/7*9/20=36/140=9/35