Zad.1
a) ( 4 i 3/10+1 i 2/5)-(3 i 2/3 - 1 i 1/2)=
Zad.2
Oblicz iloczyny:
a) 5/8 *3/10*4/5=
b)8/9*3/4*2/5=
c) 24/35 * 7/10*5/6=
d) 8/13*20/41*41/28=
e) 1 i 1/4 *1 i 1/3* 1 i 3/5=
f) 1 i 4/5* 1 i 2/3*1 i 1/8=
g) 3 i 1/2 * 2 i 1/5* 3 i 3/4=
h) 6 i 1/2* 2 i 3/13*1 i 2/4=
Pliss na dzisiaj.
Daję naj.
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zad1 ( 4 i 3/10 + 1 i 2/5)-(3 i 2/3 - 1 i 1/2)= (4 i 3/10 + 1 i 4/10)-(3i4/6-1 i 3/6)=
5 i 7/10 - 2 i 1/6 = 5 i 21/30 - 2 i 5/30 = 3 całe i 16/30 = 3 całe i 8/15
zadanie 2
a) 5/8 *3/10*4/5=3/20
b) 8/9*3/4*2/5=4/15
c) 24/35 * 7/10*5/6=2/5
d) 8/13*20/41*41/28=45/91
e) 1 i 1/4 *1 i 1/3* 1 i 3/5=5/4*4/3*8/5 = 8/3= 2 i 2/3
f)1 i 4/5* 1 i 2/3*1 i 1/8=9/5*5/3*9/8=27/8=3 i 3/8
g) 3 i 1/2 * 2 i 1/5* 3 i 3/4=7/2*11/5*15/4 = 231/8=28 i 7/8
h) 6 i 1/2* 2 i 3/13*1 i 2/4=13/2*29/13*6/4=87/4=21 i 3/4