4/9*63=4*7=28
7/15*40=280/15=18⅔
1/8*28=28/8=3,5
4/9*63=4*63*4/9=7*4/1=28/1=28
7/15*40=7*40/15=7*8/3=56/3=18 2/3
5 1/8*28=41*28/8=41*7/2=287/2=143 1/2
p.s liczę na naj:)
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4/9*63=4*7=28
7/15*40=280/15=18⅔
1/8*28=28/8=3,5
4/9*63=4*63*4/9=7*4/1=28/1=28
7/15*40=7*40/15=7*8/3=56/3=18 2/3
5 1/8*28=41*28/8=41*7/2=287/2=143 1/2
p.s liczę na naj:)