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2009-09-27T19:49:14+02:00
A)½*⅓ = ⅙
b)¾*⅕ = 3:20
c)(5:4) : (5:4) = 1
d)¼:½ = ¼*2 = ½
e)¼*½=⅛
f)(3:2):½ = (3:2)*2 = 3
g)2⅛ : ⅛ = (17:8) : ⅛ = 17
h)½:¼ = ½*4 = 2
2009-09-27T19:50:19+02:00
A)0,5×1/3=5/10×1/3=5/30=1/6
b)0,75×1/5=75/100×1/5=75/500=3/20
c) 1 1/4 ÷ 1,25=5/4÷1 1/4=5/4÷5/4=5/4×4/5=1
d)0,25 ÷ 1/2=1/4÷1/2=1/4×2/1=2/4=1/2
e)0,25 × 1/2=1/4×1/2=1/6
f) 1,5 ÷ 1/2=1 1/2÷1/2=3/2÷1/2=3/2×2/1=6/2=3
g) 2,125 ÷ 1/8=2 125/1000÷1/8=2125/1000×8/1=17000/1000=17
h) 0,5 ÷ 1/4=1/2÷1/4=1/2×4/1=4/2=2

2009-09-27T20:05:31+02:00
B) 0,05
c)1
d) 0.4
e)0,125
f)3
g)4
h)2
a) jedna szusta