Odpowiedzi

2009-09-24T18:02:44+02:00
6 : 1¾ = 6 : 1,75 = 3,4285714 = (w przybliżeniu) 3,4
7⅕ : 8 = 7,2 : 8 = 0,9
2009-09-24T18:02:58+02:00
1)
6 ÷ 1¾ = 6 ÷ 7/4 = 6 × 4/7 = 24/7 = 9 4/7

2)
7 ⅕ ÷ 8 = 36/5 ÷ 8 = 36/5 × 1/8 = 36/40 = 9/10
2009-09-24T18:03:03+02:00
6 ÷ 1¾ = 6/1 ÷ 7/4 = 6/1 x 4/7 = 24/7 = 3 i 3/7

7⅕ ÷ 8 = 36/5 x 1/8 = 9/10