Správné: 2/4+1/4=3/4, 3/8+5/8=8/8, 1 = 7/7, 1/5z25=5, 1/8z64=8, 5/9+2/9=7/9, 9/9-4/9=5/9, 120/100- 50/100=70/100, 1/100z500=5, 1/7z56=8, Nesprávné: 1/7z49=6, 1/6z30=6, 82/10-3/10=78/10, 7/7=2, 4/6+2/6=7/6, 50/100-40/100=90/100, 1/2z20=20, 1/9+4/9=6/9, 100/100-50/100=50, 1/4z32=7,

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