Odpowiedzi

2010-01-07T22:30:54+01:00
1/2+3/7+(345-679):21=
= ⁷/₁₄+ ⁶/₁₄ + (-334) :21=
= ¹³/₁₄ + (-15,9048) :21=
= 0,9286- 15,9048=
= -14,9762
2010-01-07T22:33:10+01:00
1/2+3/7+(345-679):21=7/14+6/14-334:21=13/14+ (-15,9048):21(-15,9048):21=0,9286-15,9048=-14,9762≈-15
2010-01-07T22:33:58+01:00
1/2+3/7+(345-679):21 = 1/2 + 3/7 - 334 x 1/21 = 1/2 + 3/7 - 15 i 9/10 = 35/70 + 30/70 - 15 i 63/70 = 65/70 - 1113/70 = - 1048/70 = - 14 i 68/70 lub 14.97