3/4*16= 12
3/4*8/7=24/28=6/7
3/4*10/21=30/84=5/9
3/4*13/6= 39/24= 1 i 15/24
3/4*20/3= 60/12=5
3/4*a=3/4 dzielimy przez 3/4
a=3/4:3/4
a=3/4*4/3
a=1
3/4*a=3/28
a=3/28:3/4
a=3/28*4/3
a=4/28=1/7
3/4*a=1
a=1:3/4
a=1*4/3
a=4/3
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Verified answer
3/4*16= 12
3/4*8/7=24/28=6/7
3/4*10/21=30/84=5/9
3/4*13/6= 39/24= 1 i 15/24
3/4*20/3= 60/12=5
3/4*a=3/4 dzielimy przez 3/4
a=3/4:3/4
a=3/4*4/3
a=1
3/4*a=3/28
a=3/28:3/4
a=3/28*4/3
a=4/28=1/7
3/4*a=1
a=1:3/4
a=1*4/3
a=4/3