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b)2/8*5/9= 10/72=5/36
c)4/19*2 3/8=4/19 *19/8 =1/2
d)3 3/8 * 8/9= 27/8*8/9=3
e)7/11*12/24=7/11*1/2=7/22
f)1/12*2/3=2/36=1/18
g)3 1/5* 2 1/4=16/5*9/4=36/5= 7,2
h)1/9 *9 1/2=1/9*19/2=19/18=1 1/18
i)3/7 :7/3=3/7*3/7=9/49
j)4 1/5:7/10= 21/5:7/10=5/21x7/10=6
proszę o naj. :D
b)2/8*5/9= 10/72=5/36
c)4/19*2 3/8=4/19 *19/8 =1/2
d)3 3/8 * 8/9= 27/8*8/9=3
e)7/11*12/24=7/11*1/2=7/22
f)1/12*2/3=2/36=1/18
g)3 1/5* 2 1/4=16/5*9/4=36/5= 7,2
h)1/9 *9 1/2=1/9*19/2=19/18=1 1/18
i)3/7 :7/3=3/7*3/7=9/49
j)4 1/5:7/10= 4,2:0,7=6