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4 1/6 : x = 6 2/3:4
20/3 x = 4*(25/6)
20/3 x = 100/6 /: 20/3
x = 5/2
x = 2,5
b)
x:1,5=14:4 1/5
4,2 x = 14*1,5
4,2x = 21 /:4,2
x = 10/2
x = 5
c)
5,4:7 1/2=x:0,5
15/2 x = 5,4*0,5
15/2 x = 2,7 /: (15/2)
x = 27/75
x=0,36
d)
2 2/3:3 3/7=7:x
8/3 x = 24/7*7
8/3x = 24
x = 9/1
x = 9