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2010-02-12T18:17:28+01:00
3×22/9=66/9=7i3/9

13/4×7/5=91/20=4i11/20

4 2/7"3=30/7:3=30/21

13,506"0,12=112,55
2010-02-12T18:18:25+01:00
2010-02-12T18:29:22+01:00
3×2 4/9 = 3/1 × 22/9 = 22/3 = 7,33

3 1/4×1 2/5 = 13/4 × 7/5 = 91/20 = 4,55

4 2/7:3 = 30/7 : 3/1 = 30/7 × 1/3 = 10/7 (dziesięć siódmych) = 1,43

13,506:0,12 = 13506/1000 : 12/100 = 13506/1000 × 100/12 = 2251/10 × 1/2 = 2251/20 = 112,55