Question

After these two,no more help. (for now)

Answer 1

Answer:

1)

ratio=20:1/6

givenx:2/3

20/1/6=x/2/3

120=3x/2

40=x/2

x=80

80:2/3

and then

10: x

20/1/6=10/x

120=10/x

12=1/x

x=1/12

ratio= 10:1/12

and then

90:x

20/1/6=90/x

120=90/x

4=3/x

x=3/4

then ration equal to

90:3/4