432,608 views
32 votes
32 votes
21/x =6/8, x is an unknown number what is it?

User Mononz
by
2.5k points

2 Answers

14 votes
14 votes

Answer:

x=28

Explanation:

21/x = 6/8

21/x = 3/4

84=3x

3x/84

x=28

User Rokumaru
by
3.0k points
9 votes
9 votes

Answer:

x = 28

Explanation:

21/
x = 6/8

cross multiply: 21 x 8 = 6 x
x

Combine like terms: 168 = 6
x

Divide both sides by 6: 28 =
x

User Kaydee
by
3.2k points