7/12-3/12=
3/4-1/4=
4 2/5-3 1/5=
2 2/5-1 4/5=
17/32-11/32=
4 1/2-2 1/2=
7 1/9-7/9=
5/8-3/8=
12 2/3-1/3=
17 1/2-3 1/2=

1 1/5+3 2/5=
11 11/30+2 11/30=
2 1/3+1 2/3+1 1/3=
1 2/3+1 2/3+2/3=

1/5+2/5=
15/17+1=
7/19+11/19=
15/29+21/29=
3/7+2/7=
4+2 2/9=
7 1/6+10=
11/12+11/12+11/12=

2

Odpowiedzi

2009-11-16T16:58:17+01:00
7/12-3/12= 4/12 = 1/3
3/4-1/4= 2/4 = 1/2
4 2/5-3 1/5= 1 i1/5
2 2/5-1 4/5= 3/5
17/32-11/32= 6/32 = 3/16
4 1/2-2 1/2= 2
7 1/9-7/9= 6 i 1/3
5/8-3/8= 2/8 = 1/4
12 2/3-1/3= 12 i 1/3
17 1/2-3 1/2= 14

1 1/5+3 2/5= 4 i 3/5
11 11/30+2 11/30= 13 i 22/30 = 13 i 11/15
2 1/3+1 2/3+1 1/3= 5 i 1/3
1 2/3+1 2/3+2/3= 4

1/5+2/5= 3/5
15/17+1= 1 i 15/17
7/19+11/19= 18/19
15/29+21/29= 36/29 = 1 i 7/29
3/7+2/7= 5/7
4+2 2/9= 6 i 2/9
7 1/6+10= 17 i 1/6
11/12+11/12+11/12= 2 i 9/12 = 2 i 3/4


:)
2009-11-16T17:00:23+01:00
7/12-3/12=4/12=1/3
3/4-1/4=2/4=1/2
4 2/5-3 1/5=1 1/5
2 2/5-1 4/5=3/5
17/32-11/32=6/32
4 1/2-2 1/2=2
7 1/9-7/9=6 3/9=6 1/3
5/8-3/8=2/8=1/4
12 2/3-1/3=12 1/3
17 1/2-3 1/2=14

1 1/5+3 2/5=4 3/5
11 11/30+2 11/30=13 22/30=13 11/15
2 1/3+1 2/3+1 1/3=5 1/3
1 2/3+1 2/3+2/3=4

1/5+2/5=3/5
15/17+1=1 15/17
7/19+11/19=18/19
15/29+21/29=1 7/29
3/7+2/7=5/7
4+2 2/9=6 2/9
7 1/6+10=17 1/6
11/12+11/12+11/12=9/12=3/4