Odpowiedzi

2010-02-10T15:05:41+01:00
A)2/3 * 3/4 = 2
c)12,4 / 2/3 = 124/10 * 3/2 = 186/10 = 18,6
h)(0,5 + 2/7) * 7/11 = (5/10 + 2/7)* 7/11 = (35/70 + 20/70) * 7/11 =
55/70 * 7/11 =5/10 = 0,5
2010-02-10T15:14:36+01:00
A)2/3 * 0,75=⅔×¾=½
b)0.6* 2całe1/3=⅔×2⅓=⅔*⁷/₄=⅓*⁷/₂=⅓*3½=0.3*3,5=1,05
c)12,4: 2/3=12,4 : 0.6=20,6
d)3całe5/8: 1cała1/2=3,625 : 1½