Oblicz: 3/4 - 3/2 + ( 2 1/2 - 1 7/8) : 1/8 - 2 1/4
3/4 - 3/2 + (2 1/2 - 1 7/8) : 1/8 - 2 1/4=6/8-12/8+(2 4/8-1 7/8)*8-2 2/8=
=-6/8+(1 12/8-1 7/8)*8-2 2/8=-6/8+5/8*8/1-2 2/8=-6/8+5-2 2/8=4 2/8-2 2/8=
=2
3/4 - 3/2 + ( 2 1/2 - 1 7/8) : 1/8 - 2 1/4=
3/4 -6/4 + (2 4/8 - 1 7/8) * 8 - 2 1/4 =
(-3/4) + (1 12/8 - 1 7/8) * 8 - 2 1/4 =
(-3/4) + 5/8 * 8 - 2 1/4 = (-3/4) + 5 + (-2 1/4) = 5 + (-3) = 5 - 3 = 2
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3/4 - 3/2 + (2 1/2 - 1 7/8) : 1/8 - 2 1/4=6/8-12/8+(2 4/8-1 7/8)*8-2 2/8=
=-6/8+(1 12/8-1 7/8)*8-2 2/8=-6/8+5/8*8/1-2 2/8=-6/8+5-2 2/8=4 2/8-2 2/8=
=2
3/4 - 3/2 + ( 2 1/2 - 1 7/8) : 1/8 - 2 1/4=
3/4 -6/4 + (2 4/8 - 1 7/8) * 8 - 2 1/4 =
(-3/4) + (1 12/8 - 1 7/8) * 8 - 2 1/4 =
(-3/4) + 5/8 * 8 - 2 1/4 = (-3/4) + 5 + (-2 1/4) = 5 + (-3) = 5 - 3 = 2