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= 12 i 3/7 + 3/10 * 5/6 = (skracam 3 z 6 oraz 10 z 5)
= 12 i 3/7 + 1/2 * 1/2=
= 12 i 3/7 + 1/4=
= 12 i 12/28 + 7/28=
= 12 i 19/28
3/8-1/3*0,25 =
= 3/8 - 1/3 * 25/100 =
= 3/8 - 1/3 * 1/4=
= 3/8 - 1/12=
= 9/24 - 2/24=
= 7/24
6 i 2/9 : 4 i 2/3+1,4 =
= 56/9 : 14/3 + 1 i 4/10 =
= 56/9 * 3/14 + 1 i 2/5= (skracam 56 z 14 oraz 9 z 3)
= 4/3 * 1/1 + 1 i 2/5=
= 4/3 + 1 i 2/5=
= 1 i 1/3 + 1 i 2/5=
= 1 i 5/15 + 1 i 6/15=
= 2 i 11/16