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b)5/8 : 7/12= 5/8 * 12/7= 5/2 * 3/7= 15/14=1 1/14
c)7/8 * 24/33= 7/1 * 3/33= 21/33
d)1 1/8 * 4/15= 9/8 * 4/15= 3/2 * 1/5= 3/10
e) 2 3/5 * 5= 13/5* 5/1= 13/1 * 1/1= 13
f)1 5/7:6= 12/7 : 6/1= 12/7* 1/6= 2/7* 1/1= 2/7
g) 6 1/2:3= 13/2: 3/1= 39/2= 9 1/2
h) 7 1/3:2 2/5= 22/3: 12/5= 22/3* 5/12= 110/36=3 2/36
j) 8 3/4*4/7*3= 35/4*4/7*3/1= 420/28=15
k)2 1/7*7* 2 2/5= 15/7* 7/1 * 12/5=15/1* 1/1 * 12/5= 1/1 * 1/1 * 4/1=4/1=4
To co pisałeś/łaś "PRZEZ" to nie rozumiem o co Ci chodzi :/ Czy mnożenie czy dzielenie/ PZDR
a) 4/9 * 3/4 = 12/36=1/3
b) 5/8 : 7/12 =5/8*12/7=15/14=1 1/14
c) 7/8 * 24/33 =7/1*3/33=21/33
d) 1 1/8 * 4/15 = 9/8*4/15=9/30
e) 2 3/5 * 5 = 13/5*5/1=13
f) 1 5/7 : 6 = 12/7*1/6=2/7
g) 6 1/2 : 3 1/4 =13/2*4/13=2
h) 7 1/3 : 2 2/5 =22/3*5/12=11/3*5/6=55/18=3 1/18
i. 2 * 13*4 przez 8 = 104/8=13/1=13
j) 8 3/4 * 4/7 * 3 =35/4*4/7*3/1=5/1*1/1*3/1=15
k) 2 1/7 * 7 * 2 2/5 =15/7*7*12/5=3/1*1*12/1=36
l) 4 * 15*9 przez 12 =60*9/12=540/12=45/1=45
Pozdrawiam :) Licze na naj :P