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2/2x2/2:2/2+2/2-2/2=2/2
3/3x3/3:3/3+3/3-3/3=3/3
4/4x4/4:4/4+4/4-4/4=4/4
5/5x5/5:5/5+5/5-5/5=5/5
6/6x6/6:6/6+6/6-6/6=6/6
7/7x7/7:7/7+7/7-7/7=7/7
8/8x8/8:8/8+8/8-8/8=8/8
9/9x9/9:9/9+9/9-9/9=9/9
10/10x10/10:10/10+10/10-10/10=10/10
To proste trzeba tylko pomyśleć:)
1/2 + 1/2 = 2/2 = 1
1/2+2/2= 3/2 = 1 i 1/2
2/2- 1/2= 1/2
1/2 : 1/2 = 1/2 * 2/1 = 1/1 = 1