Odpowiedzi

2009-11-07T15:49:36+01:00
4i2/7:1i1/14-3i2/5x1i1/4= 30/7x14/15-17/5x5/4= 2x2-17/4= 4-17/4= -17
2009-11-07T15:50:13+01:00
30/7 × 14/15 - 17/5 × 5/4=4 - 17/4 = -¼
2009-11-07T15:53:59+01:00
4 ²/₇ : 1 ¹/₁₄ - 3 ²/₅ *1 ¹/₄ = 30/7 : 15/14 - 17/5 * 5/4 = 4 - 17/4 = 4- 4 1/4 = - 1/4