Verified answer

1) x/48=5/6

6x=240

x=40

2) 28/x=4/9

252=4x

4x=252

x=63

3)8/15=12/x

8x=180

x=45/2=22,5

4)9/20=x/16

144=20x

20x=144

x=36/5=7,2

5)x/42=7/12

12x=294

x=49/2=24,5

6)9/16=x/24

216=16x

16x=216

x=27/2=13,5